NORTH MELBOURNE
Shaun Atley: Set to spend some time in the midfield this year after training with the Roos' midfield group occasionally this pre-season, but remains North's most damaging defensive rebounder and will most likely call the half-back line home for most of 2015.
Sam Durdin: North's first pick in last year's NAB AFL Draft, at pick No.16 overall, Durdin is capable of playing as a tall forward but seems set to spend most of this first season at Arden Street in defence. Remarkably athletic and agile for his height (198cm) but needs to make the gym his second home over the next few years.
Michael Firrito: The veteran revived his career with an outstanding 2014 and will enter 2015 on the back of another solid pre-season. Rested against Adelaide last week, he makes his return against Hawthorn in Shepparton this Sunday. Gives the Roos flexibility with his ability to play on smalls and talls.
Nathan Grima: The luckless backman faces another three months on the sidelines after undergoing back surgery recently, but the 29-year-old remains one of North's best key defenders and the Roos are hopeful he can return in the second half of the season and have his usual impact.
Lachlan Hansen: The 26-year-old has been making steady progress in his rehabilitation from hip surgery at the end of last season but has yet to return to full training. North sorely missed the intercept defender in last year's finals series and won't rush him back. The Roos remain hopeful Hansen will be fit for their round one clash against Adelaide.
Ben Jacobs: Will be looking to build on his strong finish to 2014 when he carved a niche for himself at half-back. Not overly quick, but can be an effective counter-attacker with his raking left foot. Could spend some time in the midfield too.
Jamie Macmillan: Recently appointed to North's leadership group, Macmillan will be itching for round one to roll around after his injury-plagued 2014 season. Likely to drift up onto a wing at times this season, but should spend most of his time in defence. Underrated outside Arden Street, but an automatic senior selection when fit.
Luke McDonald: Was outstanding in his debut AFL season last year even when managing a back injury late in the season. Was used predominantly in defence in 2014 but is likely to push up into the midfield more often his year. Courageous, skilled and calm under pressure.
Scott McMahon: The South Australian has fallen out of favour over the past two seasons and played just five games last year. Out-of-contract at the end of 2015, this season shapes as make or break for the 28-year-old. In a bid to revive his career, the medium defender has shed about 6kg this pre-season.
Aaron Mullett: After falling out of favour ahead of last year's finals series, Mullett suffered a serious shoulder injury in January and will be sidelined for the first third of this season. One of North's most-effective rebounders with his run and pinpoint left foot, but needs to improve the defensive side of his game.
Daniel Nielson: The 194cm defender has impressed North's coaching staff with his fierce competitiveness this summer. Hates being beaten in one-on-one contests and is very strong for a first-year player. Earned a spot in last week's NAB Challenge clash against Adelaide and could push to make his AFL debut this year.
Robbie Tarrant: Has trained with North's defensive group ahead of a mooted move from attack this year, with the Roos hopeful he can become the 'gorilla' defender they've been lacking in recent seasons. After returning to full training in January, the 25-year-old has impressed in match practice and shapes as an important player for North early this year with Nathan Grima (back) sidelined.
Scott Thompson: The 2013 All Australian has fully recovered from minor knee surgery just before Christmas and will make his return against Hawthorn on Sunday. At 193cm, he can play on smalls and talls, while his ability to read the play has made him one of the best intercept defenders in the competition.
Joel Tippett: The former Sun has added 11kg to his frame since joining North at the end of 2013 and looks set to build on his encouraging debut season. Firmly in contention for a round one berth with Nathan Grima sidelined and, at 197cm, is big enough to match up on power forwards such Tom Hawkins and Lance Franklin.
Max Warren: Delisted at the end of last season, but North threw him a lifeline in the rookie draft. Has excelled as a lockdown small defender in the VFL but struggled in his one AFL game against the Brisbane Lions in round 15 last year and against Adelaide in last Sunday's NAB Challenge game.
Sam Wright: Was a revelation late last year after being allowed to settle in defence. A composed decision-maker and an excellent kick on both feet, Wright also thrives on lock-down assignments. Fully recovered from a knock at training two weeks ago and set to return against Hawthorn in Shepparton on Sunday. – Nick Bowen
ADELAIDE
Brodie Smith: With his penetrating kick Smith is one of the key members of Adelaide's squad. Last year’s All-Australian selection will launch many of the Crows' attacking drives.
Luke Brown: Now a regular in the back half, Brown has done well to fill the void left by retired veteran Michael Doughty. An important small defender who can work off his opponent and attack.
Kyle Cheney: Crossed to West Lakes in search of opportunity and with a fan in coach Phil Walsh he will probably find it. An irregular heartbeat ruled him out for a few days in February but has trained fully since.
Kyle Hartigan: Will look to fill the shoes of the retired Ben Rutten as Adelaide's big-bodied key defender. With just 10 games to his name Hartigan will shoulder far more responsibility this year.
Ricky Henderson: Surgery limited his training last summer before that horrific broken leg, but has had a clear run since late in the 2014 season. Such an important player when firing, Henderson hopes to cement his place back in the starting 22 across half-back.
Matthew Jaensch: Along with Brodie Smith, Jaensch is one of the club's main attacking weapons in defence. Aggressive, strong and reads the ball well. Said to have been battling with Harrison Wigg about who has the best kick at West Lakes.
Jake Kelly: Yet to debut, but his attack on the football has impressed coaching staff. A strong and uncompromising player, Kelly needs to gain more experience at SANFL level before pushing for a senior spot.
Rory Laird: Fighting to lock his name on the team sheet among substantial pressure as a small defender. Laird played well against the Kangaroos, taking some strong marks and attacking the football with his usual vigour.
Jake Lever: The Crows will take a conservative approach to its No. 14 draft pick and he will come up through the SANFL. But the key defender has shown his the ability that had him so highly touted before his 2013 knee reconstruction and could still make his debut this year.
Andy Otten: The talented defender was beginning to hit his straps last year when he suffered a knee injury that required a reconstruction. Otten’s 2015 will be spent in rehabilitation with an eye on 2016.
Sam Shaw: Had a piece of bone removed from the back of his leg last year in the hope of fixing his persistent hamstring issues. If it works Shaw's athleticism could quickly turn him into an asset either in defence or attack.
Sam Siggins: Developed well last year in the SANFL and will have to do so again this year if he is to make his senior debut. Siggins is a tall defender with long arms and sound skills.
Daniel Talia: The reigning club champion is the club's most important player and leads a young and inexperienced defensive unit. The Crows need him at his best in 2015 and signs so far suggest he will be.
Brent Reilly: The veteran was training well ahead of what loomed a crucial season if his contract was to be extended before fracturing his skull at training. It appears likely Reilly has played his last game for the Crows.
Harrison Wigg: Drafted to West Lakes with huge raps on his left-foot kick and has impressed teammates with his approach to training. Got a taste of AFL football against North Melbourne and with SANFL form could push for a senior debut. - Harry Thring
BRISBANE LIONS
Jed Adcock: After two years as captain, Adcock handed over the reigns to Tom Rockliff in the off-season. One of the Lions' most consistent, you can expect more of the same in 2015, with his ability to lock down an opponent and also run off and link up in attack. Adcock will also spend plenty of time on the wing.
Harris Andrews: A Lions' academy product taken in last year's draft, Andrews has made a big impression in his first pre-season. He's 201cm and has a light frame, but is smart and reads the flight of the ball well. Don't be surprised if he sees some senior action.
Hugh Beasley: A competitive key defender, Beasley was taken as a project rookie who will spend the season in the NEAFL. He stands 190cm, but is strong-bodied and has shown through the juniors he is capable of marking much bigger opponents.
Claye Beams: The Lions want more run and better ball users in their back half and hope Beams is the answer. Dogged by injuries over recent years, the 23-year-old has moved from a congested midfield, and with his great balance, pace and thumping right boot, should be an asset coming out of defence.
Jordon Bourke: Lurking on the fringes, Bourke got one game last year, but is now in his final year as a rookie. Is a solid, medium-sized defender who has excelled at NEAFL level, but needs to improve his aerobic capacity to stick with the better running forwards.
Justin Clarke: A revelation over the past two seasons, Clarke has locked himself in as a pillar of the Lions' future. Was thrown in the deep end last year when given the opposition's best forward on a weekly basis, but his dour, defence-first approach won plenty of admirers.
Tom Cutler: Not the impact of fellow first-year players Taylor, Aish and Gardiner, but Cutler could end up being every bit as good. Was cut down by groin problems last season, but is a smooth mover who loves to rebound from defence. Will need some breaks to play consistent senior footy this year, but is definitely in the club's long-term plans.
Darcy Gardiner: Had an exceptional debut year and has added another 5kg of strength in the pre-season. Gardiner is quietly spoken but loves to niggle his opponent and has already proven a difficult man to beat.
Mitch Golby: Has slipped down the pecking order after an inconsistent year. At his best, Golby is a good small defender who uses the ball well, but last season seemed to lose confidence and bounced in-and-out of the team. Is a proud player though and capable of returning to his best.
Ryan Harwood: Finished last year strongly and looked set to resume his role as a running half-back before pre-season groin surgery struck him down. Harwood still needs to work on his endurance, but is capable of breaking the lines with his speed off the mark.
Ryan Lester: The Lions have high hopes Lester can fill the void left by Joel Patfull (now with GWS) as a hybrid defender who can help in both directions. Has had an exceptional pre-season and is fitter now than he was when playing midfield. Stands 190cm tall and is capable of playing on medium forwards.
Matt Maguire: With Merrett reverting to defence, Maguire will likely be used as a back-up this year. Has done a remarkable job to prolong his career against the odds and has become a mentor around the young group. Maguire is always ready to play and is the perfect insurance for any injuries to key defenders.
Josh McGuinness: A medium-sized rebounding defender, the Tasmanian was drafted with a long-term view and will spend the year in the NEAFL. He is lean and raw and will be given time to develop. The 19-year-old has exceptional kicking skills.
Daniel Merrett: Will return to his more familiar, and favoured, role at fullback. With injuries and an inexperienced forward line, Merrett has spent a big chunk of recent seasons playing in the forward 50. By his own admission, was poor last year, and coach Justin Leppitsch now wants to see him team up alongside Clarke to provide a solid key defensive duo.
Marco Paparone: A phenomenal athlete, Paparone has been shifted from a running half-forward to the wing and will now play defence. Was dropped from the seniors last year and impressed when moved into defence at NEAFL level. Paparone is 194cm, runs like a gazelle, and has the creativity the Lions are looking for from the back half.
Daniel Rich: Rich has made a strong comeback from an ACL injury that ruined his 2014. With his devastating left-foot kick, the Lions hope he will be the catalyst for much of their attack from the back half, and will look to use him as much as possible when exiting their defensive 50.
Josh Watts: Much like his Tasmanian mate McGuinness, Watts will develop through the NEAFL this year. He is rangy (194cm) and can play at either end of the ground, but will settle in the back half. - Michael Whiting
Daniel Merrett's occasional brain fades can cost him but a move back to defence this year may help
CARLTON
Ciaran Byrne: The Irish rookie has developed significantly since joining Carlton at the end of 2013 and is expected to push for his AFL debut this year. Byrne uses the ball well and got his first taste of senior football in the Blues' round one NAB Challenge clash with West Coast. Likely to get another opportunity in Carlton's next game against Collingwood on March 15.
Sam Docherty: The former Brisbane Lion's second pre-season at Visy Park has gone far more smoothly than his first. Given Docherty finished ninth in last year's best and fairest award, the Blues are excited by what he could produce in 2015 after a solid preparation. Likely to again to spend most of his time across half-back, but is being groomed to spend time on the wing too.
Tom Fields: The first-year rookie is an excellent kick who will be developed to play across half-back. Like most youngsters, he has work to do on the defensive side of his game and Carlton's deep half-back stocks will make it hard for him to earn a senior game.
Cameron Giles: The second-year key defender faces a long stint on the sidelines after undergoing a second operation on his right navicular in November. The South Australian still harbours hopes of returning to the field late in 2015 if he can return to full training by July.
Kristian Jaksch: The former Giant tall made a strong debut for the Blues against West Coast last week in defence, where he looks set to spend most of his time in 2015. Still growing and has some work to do in the gym, but has the talent to develop into a damaging swingman. Has enjoyed a solid pre-season since returning from a foot injury after Christmas.
Michael Jamison: Free of the shoulder problems that dogged him in previous pre-seasons, the newly appointed vice-captain has completed an outstanding summer preparation. Rested from Carlton's round one NAB Challenge match but should return for the Blues' final two pre-season games. Will again shoulder much of Carlton's key defensive load in 2015.
Sam Rowe: One of the success stories of Carlton's 2014 season, Rowe is in a good position to build on his breakthrough year in defence after an excellent pre-season. Developed a strong partnership with Michael Jamison last year and will again be assigned to one of the opposition's power forwards this season.
Ciaran Sheehan: After his impressive finish to last season, the Blues have high hopes for the hard-at-it Irishman. If the left-footer can cement a position across half-back, it could release someone like Sam Docherty to play in the midfield.
Zac Tuohy: The Irishman was down on his career-best 2013 form last year, but has been one of the Blues' standout track performers this pre-season. Has not missed a game over the past two seasons and is capable of shutting down dangerous small forwards while providing counter-attack on the rebound.
Dillon Viojo-Rainbow: The Blues' second pick in last year's NAB AFL Draft, at No. 28 overall, the former Western Jet is a classy defender/midfielder with a booming left foot. Like most first-year players, he needs to improve his conditioning and strength, but the Blues gave him a taste of senior football as one of their substitutes in the NAB Challenge loss to West Coast.
Andrew Walker: The 28-year-old's pre-season has been decimated by a chronic knee injury that required another operation recently. However, he has such a naturally strong fitness base that he remains an outside chance to play in round one against Richmond.
Simon White: Will spend most of his time in defence again in 2015, but is set to be used more flexibly, with occasional forays into the midfield and attack likely. After an outstanding pre-season, White was one of the Blues' best performers in last week's loss to West Coast.
Chris Yarran: The speedster will again be stationed across half-back after becoming the Blues' most damaging defensive rebounder in 2014. He has fully recovered from the minor calf injury he suffered in late January and was among the Blues' best against the Eagles last week. - Nick Bowen
COLLINGWOOD
Tony Armstrong: Was shifted to the rookie list so the Pies had more picks in last year's draft. The former Sydney Swan and Crow is a handy player to have on the club's list because of his versatility.
Nathan Brown: Fit again after being restricted to only three games in 2014 because of season-ending shoulder surgery. Brown will look to re-establish himself in a key position role and aid Jack Frost and Ben Reid in defence.
Jack Frost: Frost was the only Collingwood player to run out in all 22 games for the Magpies last season. The 23-year-old's ability to stand his ground and compete will be a crucial factor in the club's finals hopes.
Tom Langdon: Exceeded everyone's expectations with an outstanding debut season in 2014. Langdon has risen quickly to being one of the top intercept players in the AFL, something he hopes can continue this season.
Michael Manteit: The Magpies drafted Manteit in the rookie draft to release some of the club's more experienced defenders into the midfield. Was a favourite of Collingwood recruiter Derek Hine.
Jonathon Marsh: The speedy defender made great strides in the VFL last season before a season-ending hamstring injury late in the year. Still recovering from the injury and is listed as 3-4 weeks away from a return.
Brayden Maynard: Renowned for his precise and powerful left boot, Maynard has not looked out of place at Collingwood during the pre-season. The No. 30 pick in last year's draft is likely to push for senior action at some stage this season.
Darcy Moore: The highly-rated father-son pick suffered a setback when he injured his toe in January. The Magpies believe Moore is about a month away from a return. That timeframe is not a concern, considering Collingwood sees Moore as a long-term star of the club.
Adam Oxley: Was earmarked to fill a position across half-back in 2014 before a long-term ankle injury ruined those plans. Expected to push hard for a permanent senior berth this season and add to his two career games.
Jackson Ramsay: Has taken some decisive leaps forward and appears a more confident player. Managed two senior games last year and will look to build on that this season. His speed and versatility make him a suitable defensive option for coach Nathan Buckley.
Ben Reid: A nightmare 2014 season is behind him, but that has not stopped the persistent calf issues disrupting part of the 2011 All-Australian's pre-season campaign. Was sent to Germany to gain a better understanding about the injury from a medical expert associated with soccer giant Bayern Munich. Still up to a month away from a return.
Matthew Scharenberg: As frustrating as life has been for the No. 6 pick in the 2013 NAB AFL Draft, things are starting to look more promising. A long-term foot injury and then a season-ending ACL tear have been unneeded distractions for the promising key defender. The Pies still list him out as 'indefinite' but a mid-year return is not out of the question.
Paul Seedsman: Had exploratory hip surgery in January to ease some soreness he was experiencing in the joint. As a result the rebounding defender is yet to return to training. His run and dash are pivotal for Collingwood, but a return before the start of the season is unlikely.
Alan Toovey: Had a slight setback when he nicked his calf after returning from the Christmas break, but the dependable defender is back on track. Never a high-possession getter, but his worth to the side is unquestionable.
Marley Williams: Williams' run and dare from the back half shape as critical for Collingwood this season. Took some promising steps forward in 2014 and will look to continue to improve this year. He and Tom Langdon's ability to shut down the opposition's small to medium forwards will be crucial. - Ben Guthrie
ESSENDON
Jason Ashby: The Bombers have high hopes for Ashby, who played five games last year in his second season at the club. He will be aiming to find more of a regular spot across half-back and the wing in 2015 after completing his first full pre-season. He's put on a little bit of size and is a nice, smooth mover who reads the play well.
Mark Baguley: One of Essendon's most improved and consistent players over the last two years. The club trusts him to hold down and contain the opposition's most dangerous small forward, using his speed and defensive mindset to cut them out of games. His ball use has also become more reliable as a rebounding option.
Lauchlan Dalgleish: After several seasons at the club, the running half-back will be hoping to consolidate his spot as a player the Bombers want to have the ball. With his left-foot delivery, and capacity to break the lines, Dalgleish will be aiming for a return to the senior line-up after battling leg injuries last year.
Courtenay Dempsey: A planter facia injury in his foot interrupted Dempsey's pre-season, which until then had been an improvement on his previous off-season which saw him struggle to reach his peak in 2014. At his best, Dempsey's run and carry, strong kicking skills and ability to set the game up from half-back and the wing are pivotal.
Orazio Fantasia: The second-year prospect is in the defensive group as a ball carrier. His speed and agility is strong and it gets him out of trouble and into space, and his penetration by foot can be damaging. A small groin niggle has limited Fantasia in recent times but isn't a long-term worry.
Dustin Fletcher: The competition's oldest player has got through another pre-season, and looks set to again have a steadying influence on the club's backline. Seven games short of being only the third player in League history to reach 400 games, the 39-year-old will continue to help guide the club's younger defenders.
Martin Gleeson: Plenty of people at the Bombers are excited about Gleeson's potential. He still needs to put on some size, but his movement in traffic, dare with the ball and intercept marking make him an emerging player at the club. Gleeson's promising start to last season was cut down by an on-going quad injury but it didn't impact his summer.
James Gwilt: The Bombers recruited the ex-Saint as a free agent to add some more depth to their backline, but also because of his ability to be used up forward. He brings with him plenty of finals experience and at his best is a reliable distributor of the ball.
Michael Hibberd: Hibberd has rapidly risen into one of Essendon's most important players. The rebounding, attacking half-back has become a target for opposition clubs, who often send a defensive forward his way to restrict his run and ball movement. Hibberd has continued to improve his leadership in recent seasons as his standing at the club grows.
Cale Hooker: Hooker was one of a small group of Bombers who travelled to Colorado in December for altitude training. The key defender enjoyed a stellar season in 2014, earning All Australian honours and finishing second in the best and fairest. He was elevated to the Bombers' leadership group for 2015.
Michael Hurley: The club's football manager of performance, Neil Craig, recently noted Hurley had enjoyed an exceptional pre-season. A minor back complaint ruled him out of action for about a fortnight but he has been back in the action this week and is looking to back up his career-best season last year. Appears likely to again spend stints up forward when the Dons need to pinch a goal.
Conor McKenna: The international rookie has fitted in well at the club since arriving from Ireland. Immediately he impressed with his athleticism and foot skills. He has spent most of his time with the defensive group training as a backman, but has also got a taste of things in attack. McKenna has already shown his dynamic traits to teammates.
Tayte Pears: After some horrible injury luck in recent seasons, Pears enters another year with a disrupted pre-season. Following heel surgery towards the end of last season, he has treaded a slow path back to fitness and returned to light training last week. He ran at a reasonable level but is still some time away from resuming full duties.
Ariel Steinberg: Having been used as a forward early in his career, Steinberg has settled into his place as a third tall defender. He was made to wait for his debut, which finally came last year, but will spend another season starting on the rookie list. He trains hard, reads the game well and can play on opponents taller than him. - Callum Twomey
Remember Tayte Pears? The Dons defender has suffered with a litany of injuries in recent seasons
FREMANTLE
Zac Dawson: Veteran key defender just signed a two-year contract extension. Has had a limited pre-season due to a niggling groin injury that has persisted after Christmas. He has barely trained in 2015 and is working his way back slowly. Unlikely to be available round one and won't be rushed back.
Paul Duffield: Dependable defender who tends to drop off his opponent and provide support for his teammates to ensure they are not exposed one-out. Also arguably the best kick in the Dockers team. His precision by foot coming out of defence is a weapon. Got injured late in the NAB Challenge clash with Melbourne but Ross Lyon played down the severity. Remains an important player within the best 22.
Ethan Hughes: A 20-year-old from Swan Districts who was a real smokey when selected by the Dockers in the most recent rookie draft. Hughes, who only started playing football at 15, has a lot of potential as a running half-back. He plays taller than he is and has tremendous agility. He will spend a lot of time developing in WAFL this year but he has impressed in pre-season training.
Sean Hurley: Irishman from County Kildare who has converted from Gaelic football. He stands at 196cm and his endurance and running capacity is extremely impressive. The club is still trying to work out his most natural position and he could be trialled at half-back for Peel. It will be an experimental year for Hurley.
Garrick Ibbotson: Had shoulder surgery during the off-season. Has trained exceptionally hard in his conditioning work but has been eased back into full contact training. Showed a lot of courage to fight through his shoulder injuries last year. Missed the first NAB Challenge clash but should return for the second. Good intercept marker.
Michael Johnson: The 2013 All-Australian was notable for his absence from last year's finals series. A significant back injury forced him to have surgery and miss the early part of pre-season. His recovery since Christmas has been outstanding and he looked in fine shape in the first NAB Challenge game. He is a critical member of the Dockers side for his leadership and calmness under pressure.
Luke McPharlin: The 33-year-old ran a personal best in the club's 3km time trial during the pre-season. Looks in fantastic shape and played well in the first NAB Challenge game against Melbourne. Is likely to be managed at stages throughout the year to ensure he is fit for finals.
Alex Pearce: Impressive tall defender who came close to making his debut last year after being drafted in 2013. Has an outstanding running capacity. Has had a slightly interrupted pre-season with some foot soreness requiring him to work away from the main group for a few weeks to ease his workload. Ross Lyon has suggested he could play some games when and if Luke McPharlin requires a rest.
Alex Silvagni: Takes on greater responsibility this year given the management of Luke McPharlin and the current injury troubles for Zac Dawson. Strong key defender who is tough to beat one-on-one. Did an excellent job on Lance Franklin in the Dockers' qualifying final loss last year. Will have more big jobs come his way.
Tanner Smith: Young key position player who can play both ends but has played predominantly in defence. Was downgraded to the rookie list after injury troubles last year. Played one game in 2013. He played as the sub in the first NAB Challenge but only came on late in the last quarter. Unlikely to play much senior football this year unless there are injuries to key personnel.
Lee Spurr: Tough mature-age defender who was again named in the Dockers' leadership group. Plays regularly on the competition's best small forwards and is rarely beaten. Vocal leader in defence and will continue to be a mainstay of Fremantle’s side.
Cameron Sutcliffe: Young running defender on the rise. He was named Fremantle's player of the finals last year along with Zac Dawson. One of Ross Lyon's favourites, he's had an impressive pre-season and performed well in the first NAB Challenge game. Took on the kick-in duties and may be used more in that role depending on Paul Duffield's fitness.
Tom Vandeleur: Turns 20 this month and is in his second year on the rookie list. He's a 192cm, 92kg defender. Has the ability to float forward but has played mainly in defence for Peel Thunder. Unlikely to play senior football this year. - Alex Malcolm
GEELONG
Jed Bews: Bews, the son of club great Andrew, has improved his aerobic capacity this pre-season after failing to run out games in 2014. With James Kelly moving into the midfield, the small defender's role is likely to fall to Bews, who is regarded as an aggressive and pacy backman.
Mark Blicavs: The 198cm utility trained with the defensive group during the pre-season and has worked closely with Harry Taylor and Tom Lonergan on his positioning. Blicavs' versatility is his key asset, so he will no doubt spend time in the ruck, on the wing and even up forward.
Josh Cowan: After three years wrecked by achilles and hamstring problems, Cowan is finally back on the track and ready to get back to playing footy. Will start in the VFL and look to press for a senior berth so that he can add to his three career games.
Cameron Delaney: The former North Melbourne defender is making strong progress in his return from off-season toe surgery. However, the rookie defender is still eight to 10 weeks away from returning to full training, meaning he faces a delayed start to the season.
Corey Enright: The veteran Cat signed a one-year deal to play on in 2015 and his role will prove crucial to Geelong's premiership hopes again. Reads the game like no other, allowing him to cut off opposition kicks and rebound with purpose.
Jake Kolodjashnij: Kolodjashnij, the twin brother of Gold Coast's Kade, showed plenty of promise for Geelong's VFL team last season. The 19-year-old has worked closely with legendary defender and part-time development coach Matthew Scarlett this pre-season with the view of gaining senior opportunities this year.
Tom Lonergan: The reliable defender will be asked to handle some of the AFL’s best forwards again in his customary role at full-back. Turned down a contract offer from the Western Bulldogs in the off-season and demonstrated loyalty to remain at Geelong.
Andrew Mackie: Rebounding from defensive 50 is his forte and Geelong will call on Mackie to continue dishing the ball to teammates. May spend time on the wing as well, but his ability to play on taller and smaller opponents makes him a valuable member of the Cats side.
Jared Rivers: Enjoyed a fine 2014 season to finish sixth in Geelong's best and fairest. The versatile defender's role is crucial for the Cats' overall structure as he allows Harry Taylor to push forward at times. Has a happy knack of spoiling the ball away from his opponent.
Billie Smedts: It is now or never for Smedts, who falls out of contract at the end of the season. The Cats' first-round pick from the 2010 NAB AFL Draft has been inconsistent, with injury and form issues causing disruption. Has enjoyed a terrific pre-season and is desperate to lock down a spot in Geelong's best 22.
Harry Taylor: The star defender hired a running coach over the off-season to ensure he was ready to roll during the pre-season. Decided he needed to be leaner and fitter to run out games more consistently after an up-and-down 2014. Taylor has all the skills to be the game's best defender.
Jackson Thurlow: Sent to hospital after suffering a lacerated kidney during a routine training drill in December. Returned to the training track early last month and has been focused on getting up to speed with his conditioning. Despite missing a lot of training, Thurlow is aiming for an early-season return.
James Toohey: The 197cm rookie key-position player floated between defence and attack in the VFL last season. Trained closely with Harry Taylor and Tom Lonergan during the pre-season, meaning the backline is his likely starting point in 2015.
They've won a flag together, so it's no wonder that Andrew Mackie and Chris Scott are pretty close
GOLD COAST
Greg Broughton: Was redrafted as a rookie, but after 20 games last year, Broughton is a huge chance to be elevated again. Dependable and resolute, the former Docker has a good mix between defence and attack.
Clay Cameron: An untimely bug cost the Queenslander 4kg and some pre-season training on the sidelines. Impressed last year as a third tall defender with his dour attitude and is again in the frame to be a regular in 2015.
Josh Glenn: Has impressed in his first pre-season at the club after being taken as a 20-year-old rookie from South Australia. Glenn has supreme kicking skills and will be used at half-back.
Jarrod Harbrow: Seems to get better with age. Harbrow played more of a midfield role in 2014, but has trained with the defenders during the pre-season and will again split time between the two. His run-and-carry is crucial to the Suns, and Harbrow's skills and decision-making get better by the year.
Kade Kolodjasjnij: A terrific debut season for the No.5 draft pick from Tasmania. Kolodjashnij has composure beyond his years, and his left foot is already one of the most penetrating and accurate on the list. Arguably the Suns' best endurance athlete, watch for him to push up to the wing.
Sean Lemmens: Another coming off a strong first year, Lemmens again looks set to hold down the back pocket position in 2015. He is lightly framed but a fearless competitor who attacks the ball without hesitation.
Jack Leslie: Young key defender who made some good improvement in his first season. Ideally the Suns would like him to develop for another year or two in the NEAFL, but the 198cm 19-year-old will be right in the frame for a call-up if either Thompson or May get injured.
Nick Malceski: The biggest signing for the Suns since Gary Ablett switched from Geelong. Malceski is not only a Sydney Swans premiership player, but at 30, is fresh from an All Australian season. His on-field exploits are well known, but his off-field leadership and influence have also made an immediate impact.
Steven May: Found his home at fullback last year, and through the first 15 rounds was in All Australian contention. May is combative, and although looking slightly undersized at 190cm, reads the play well and loves to play in front and run off his man. A knee injury post-Christmas has curtailed his pre-season and he is racing the clock for round one.
Trent McKenzie: The laconic left-footer has proved the perfect hybrid defender during his four-year career. At a pinch McKenzie can play as a third tall, but does his best work as a loose man where he can use his booming left foot to launch Gold Coast counterattacks. Forms a trio of lethal lefties alongside Malceski and Kolodjashnij.
Adam Saad: A super impressive pre-season has vaulted this rookie to the cusp of a senior elevation. This Coburg product has exceptional speed off the mark, evasion and loves to take the game on.
Henry Schade: Big year for the lanky Tasmanian who is entering his fourth season at the club. Schade, a key defender, has had best pre-season to date and put in an admirable performance against Tom Hawkins in the opening NAB Challenge match.
Danny Stanley: The veritable "Mr Fix It" for Gold Coast, Stanley is capable of playing anywhere on the ground. Is capable of getting his own ball, but has done his best work when shutting down an opponent. Will likely be on the selection fringe, but has proved time and again he is up to any challenge.
Seb Tape: Almost the forgotten man of the Suns defence, Tape's career has been stalled by a series of injuries. With a modified pre-season he will start down the pecking order, but at his best, Tape is a supremely skilled third tall that is difficult to beat one-on-one.
Rory Thompson: Alongside May, Thompson has the potential to form one of the best one-two key defensive units in the AFL. With his long arms and great closing speed, the Queenslander is capable of playing on forwards of all sizes. A turf toe injury has disrupted his pre-season, but he'll be fine for round one. - Michael Whiting
GREATER WESTERN SYDNEY
Matt Buntine: Took a step forward last year by managing seven games, including the final four. A strong intercept mark, Buntine was often undersized on his opponents last season and faces a fresh challenge with Joel Patfull coming into the team.
Aidan Corr: A shoulder injury ruined the young key position player's 2014 season after just four games. But he is back on track and has been named for the Giants' first NAB Challenge match against Gold Coast.
Phil Davis: The tough-as-nails co-captain has trained with a guard to protect his damaged kidneys, but is on track for a big campaign. Davis recently extended his contract until the end of 2018 and is set to form an important partnership with Joel Patfull.
Curtly Hampton: Versatile half-back who can play taller and smaller than his 185cm. Restricted by an ankle injury then shoulder problems last year, Hampton returned in round 23 and is ready to go for the NAB Challenge.
Nick Haynes: Mobile 192cm defender has bulked up over the off-season after overcoming a season-ending broken ankle in round eight. Haynes has reportedly put on 4kg as he tries to win back a spot in an increasingly competitive back six.
Adam Kennedy: Small defender who sits fifth on the Giants' games list with 54 matches under his belt. Kennedy, who played 20 matches last year, has shown the ability to shut down some of the game's premier small forwards.
Caleb Marchbank: Tall defender who defied back and knee issues in the past two years to go pick six in last year's draft. Can play forward and will be hoping to earn a senior debut at some point in 2015.
Tim Mohr: Ahead of schedule after a knee reconstruction, the big backman is aiming to play round one against St Kilda. At 196cm and 103kg he adds size to GWS' defence but has not played since round 18 and has been left out of the Giants' first NAB Challenge match.
Joel Patfull: The dual Brisbane Lions best and fairest relocated to Sydney during the NAB AFL Trade Period and looms as a key signing for the Giants. The 190cm former Lion often takes bigger opponents and his experience will be pivotal as Leon Cameron attempts to reduce the scores kicked against his side.
Lachie Plowman: Suffered a dislocated left elbow in January which was expected to rule him out of the opening rounds. However, the former No. 3 draft pick is recovering well and is some chance to be available for round one, assistant coach Alan McConnell told AFL.com.au last month.
Heath Shaw: Experienced campaigner has been rested for the Giants' first NAB Challenge match ahead of an important campaign. Shaw's defensive rebound will remain crucial if Leon Cameron's men are to take the next step towards the finals.
Zac Williams: Former rookie struggled to nail down a spot last year, playing only eight games. Battling against Heath Shaw and Adam Kennedy for a small defender's role but has the talent to be thereabouts.
Nathan Wilson: A high-leaping small forward in his early career, Wilson was used at both ends last season and showed a knack for defence. Standout performer in the NEAFL who will be aiming to play more than last year's six games in 2015. - Travis King
HAWTHORN
Grant Birchall: Suffered a pre-season setback when he injured his medial ligament at training but is a chance to return for the Hawks' third NAB Challenge match against St Kilda. The triple premiership player remains one of the game's consummate and most underrated defenders.
Kaiden Brand: Season in tatters after he dislocated his troublesome left shoulder in his first contest in the NAB Challenge opener against Collingwood. The yet-to-debut 198cm backman was developing nicely ahead of his third season on the list but has undergone a reconstruction and will be sidelined for up to five months.
Shaun Burgoyne: The man his teammates call 'Silk' is showing no signs of slowing down at age 32. Was one of the Hawks' best on Grand Final day when he picked up a third premiership medal (he won his first at Port Adelaide). The versatile star has enjoyed a standout pre-season, coming off the best of his five seasons at Hawthorn.
Taylor Duryea: An uncompromising back pocket, Duryea made the position his own last year in 23 games. He fended off competition from the likes of Angus Litherland to replace retired hard man Brent Guerra and was the substitute in the Grand Final after missing out in 2013. Will be keen to further cement his spot in 2015.
James Frawley: Looked shaky in his first NAB Challenge match as a Hawk with little senior support around him, but looms as a blue-chip investment once he finds his feet in the defensive system. The former Demon started pre-season earlier than the other senior players and is the heir apparent to Brian Lake at full-back.
Josh Gibson: Told AFL.com.au recently he has "done everything" this pre-season coming off a premiership year interrupted by a torn pectoral. Alastair Clarkson has flagged the two-time premiership backman being used up forward at times, but expect him to offer third-man up support, particularly to new boy Frawley, early in the year.
Kurt Heatherley: New Zealand project player has taken great strides and looked at home in Hawthorn's defence during pre-season match simulation. The athletic 20-year-old is competitive, quick and reads the game well, but might need some good form for Box Hill and injuries to make his debut in 2015.
Daniel Howe: Talented draftee who impressed the longer the match wore on in his first appearance in the NAB Challenge. At 191cm he boasts good speed for his size and is composed with ball in hand. Needs to add some bulk and is likely to spend 2015 developing in the VFL.
Brian Lake: Overcame niggling calf problems and a four-match suspension to play a vital role in last year’s flag. Some thought the 33-year-old might be pushed out by James Frawley's arrival, but the former Bulldog signed a one-year deal and should start the season as Hawthorn's No.1 key defender.
Angus Litherland: Pacy and versatile backman has been one of the most impressive performers over the summer as he pushes to become a regular player. Made his debut and played 13 games in 2014. If he's not in the round one team, looms as the next in line for a defensive spot.
Teia Miles: Son of former Collingwood, West Coast and Geelong player Geoff who was drafted as a small defender. A good competitor, Miles wasted no time getting in the thick of it against the Magpies in the NAB Challenge. Needs to add size and has been earmarked as a potential on-baller in years to come.
Matt Spangher: The cult hero who finally tasted flag success last year has had an interrupted pre-season with another niggling calf injury. Has been on a modified program and could find it tough to claim a spot when round one rolls around.
Ben Stratton: Highly regarded West Australian continues to blossom as a defender and emerging leader. Was one of the few senior players charged with leading a youthful team in round one of the NAB Challenge.
Matthew Suckling: Damaging defender had a slow start to pre-season after having part of his kneecap removed following the Grand Final. Was up and running in January and has been named in the Hawks' squad to play North Melbourne on Sunday. – Travis King
MELBOURNE
Lynden Dunn: Established himself at full-back in the past two seasons performing well in one-on-one duels, often against taller opponents. A booming kick he also takes responsibility for kick out duties. Now in control of his game, he is more consistent as a result.
Sam Frost: Tall, well built defender who managed 16 games with Greater Western Sydney last season. Frost is a competitor who still requires development but he is likely to get opportunities at Melbourne.
Colin Garland: Had bad luck with injury last season but has proved a solid defender who is prepared to run. Has improved his efforts when third man across and is a respected player.
Jack Grimes: After being tried as a midfielder, Grimes is going to settle at half-back, the position where he has performed best. After a disappointing 2014, he is primed for a big year. Needs to impact the game more but he has the talent and temperament to lift.
Neville Jetta: Jetta was a surprise packet in 2014 after being placed on the rookie list. Played well as a small defender, quelling players with the talent of Chad Wingard and Eddie Betts. Injury free, he has a long career ahead as a small defender.
Heritier Lumumba: A premiership defender who will provide the Demons with run out of the backline, he brings experience and competitiveness to the line-up. Plays his 200th game in round one, but at just 28 he remains capable of taking up a wing position.
Oscar McDonald: Came to the fore in the second half of last season with the North Ballarat Rebels. He can play at either end of the ground but will be given time to develop the body and mind to cope with the rigours of being an AFL defender. McDonald is a promising type.
Tom McDonald: McDonald is a great endurance athlete who has performed well on the best opposition forwards early in his career. His disposal is not great but his decision-making is improving and he now attacks the game after winning possession with more of a plan about what he is going to do next.
Christian Salem: Has stood out across half-back in pre-season trial games reading the play well and distributing the ball with class. Salem is a neat left foot kick and seems to have time when in possession. A quality recruit he will take another step this season.
Dean Terlich: Terlich is at the crossroads after an inconsistent 2014 that failed to build on an excellent debut season the previous year. Had a shoulder operation post-season and has had an interrupted pre-season but is doing extra running to catch up with the group.
Mitchell White: Burly rookie listed player who has a big enough body to play senior football but still needs to improve to make the grade. His 3km time trial was elite and he is a good left foot kick. - Peter Ryan
Jack Grimes looks likely to settle in the backline again this year with Tom McDonald alongside him
Logan Austin: Tall defender in his first year at the club who will take some time to develop into an AFL player. Good skills for a big guy and is back to full training after some shoulder surgery.
Matthew Broadbent: The Power's key rebounder with Jasper Pittard, Broadbent will continue his fine work across half-back this season. He could spend some time through the midfield but will be required in defence for the most part.
Darcy Byrne-Jones: A late bloomer by usual standards, Byrne-Jones is making fast progress at Alberton and has developed a reputation for his speed and aggression as a small defender. He hopes to put pressure on Jarman Impey in the senior team.
Alipate Carlile: Port's premier big-bodied defender usually gets the strongest opposition forward each week. Carlile has worked hard to improve his fitness in the past few seasons and his game has benefitted greatly as a result.
Sam Colquhoun: Played well in 2013 but ruptured his ACL early last year. He has entered the home straight of his rehabilitation and will offer the club good depth as a defender/midfielder this year.
Tom Clurey: The young key defender matches size with an incredible endurance, which makes him a difficult opponent to match up on. He made his debut last year and is next in line behind Alipate Carlile and Jackson Trengove.
Jack Hombsch: The key defender has locked his place in this impressive Power line-up, combining good size with agility and speed. He reads the play well and rarely gets beaten.
Jarman Impey: A small defender with impressive raw speed and a competitiveness that makes any small forward within striking distance nervous. Impey is a tenacious tackler who loves to run and carry the ball.
Tom Jonas: Has developed quickly under coach Ken Hinkley and is one of the most underrated defenders in the competition. His place in Port's leadership group reflects his importance. A no-nonsense defender who nearly always gets the job done.
Cam O'Shea: One of the Power's versatile defenders, O'Shea has the height to handle taller opponents but the speed and agility to man up on small forwards. He is likely to spend some time in the SANFL but he has shown he can play great football at AFL level.
Jasper Pittard: His drive out of defence is so crucial to Port's attack, as is his run. He led the AFL for bounces last year. Pittard has honed his skills this pre-season as he showed in the club's internal match simulation.
Sam Russell: A serious hamstring injury severely hampered his 2014 season, but he returned to feature in the club's SANFL Grand Final appearance. A small, speedy defender who will look to improve his foot skills at SANFL level this year.
Jackson Trengove: Still in line for round one despite shoulder surgery, Trengove is up there as one of the team's most important cogs. His aggression and leadership as a key defender is superb and the Power find it difficult to replace him when injured. - Harry Thring
RICHMOND
David Astbury: Has effectively completed a double pre-season since recovering from a dislocated knee cap last year and will form a key part of the back six. Hasn't missed a beat in training and has impressed with his growing leadership traits.
Jake Batchelor: After working his way into the senior team in the second half of last season, Batchelor is looking to secure a role across half-back in 2015. Has used his size well in training and was impressive rebounding in the opening NAB Challenge match against the Western Bulldogs.
Jason Castagna: Produced an eye-catching performance against the Bulldogs, using his speed and rebounding ability and winning 12 possessions. The rookie recruit is likely to spend the season in the VFL where improving his disposal efficiency will be a focus.
Troy Chaplin: Played every game last season and shapes as a wise head in the backline again in 2015. Has dropped weight and is moving better this pre-season, completing all work required of him. Was left out of the Tigers' first NAB Challenge match but should feature before round one.
Matt Dea: An attacking and versatile small defender, Dea has been managed because of some niggles and soreness in his sixth pre-season. He did not feature in the opening pre-season game and isn't guaranteed game time ahead of round one.
Todd Elton: The tall defender was impressive in the opening pre-season game, shutting down Tom Boyd and proving he will add depth in the backline key posts. Has been managed at times over the summer but has a good fitness base and is one of the Tigers' most durable players.
Dylan Grimes: The versatile defender played a key role against the Bulldogs, but will likely settle as a third tall defender this season. Valued for his ability to play tall or small, he has enjoyed an injury-free pre-season and has built his speed and endurance.
Bachar Houli: Will play a high half-back role for the Tigers this season, utilising his ability to push onto a wing when needed. Has been running like a midfielder over the pre-season and will feature in later pre-season games.
Ben Lennon: A solid performer in pre-season training, Lennon can be used as a half-forward or half-back but he has done the majority of his work with the defenders. Has rebounded well from hip surgery at the end of last season.
Kamdyn McIntosh: A terrific pre-season has seen the 21-year-old settle among the Tigers' top four runners, making him one the club's most improved trainers. He is handling the workload better in his third pre-season and will push for wing and half-back roles at AFL level.
Steven Morris: After recovering from a shoulder injury pre-Christmas, the small defender appears set for a shift forward as a replacement for the retired Jake King. The hard-nosed Tiger will be expected to create scoring opportunities with his defensive pressure in the new role.
Chris Newman: Restricted pre-Christmas, the veteran has completed all required work since and is on track to feature in pre-season games. Has trained with the defenders and forwards, with the Tigers keen to use him in both roles this season.
Alex Rance: An impressive pre-season has him well-poised to back up his All Australian 2014 campaign. The Tigers are keen to give their young key defenders more game time, which would free Rance up to play more versatile roles. Has barely missed a session.
Nick Vlastuin: Entering his third season, Vlastuin is shaping as the Tigers' No.1 small defender in 2015 if Steven Morris is moved into the forward line. Impressive against the Bulldogs in a lockdown role, he is also going to be a preferred ball-user out of defence and has the ability to re-join the midfield rotation when needed. - Nathan Schmook
Troy Chaplin may look to tone down the celebrations after this faux par in 2014 against the Power
ST KILDA
Luke Delaney: Hasn't missed much of the pre-season after getting over post-season hip surgery. Is important to the backline's structure and will be relied on to be the general in defence again while playing on the big power forwards.
Sean Dempster: The ever-durable former Swan has had a strong pre-season without any injury concerns, indicating he will continue to set them up in defence and provide leadership to the younger players.
Sam Fisher: The Saints' oldest player has put in the type of pre-season that indicates he should be more durable this year than he has in the past two. Understands his body and is managing it well, and is expected to hold up to bring some experience to the backline this year.
Jarryn Geary: Remains in the leadership group for the second season and has had a strong summer, with the exception of a week when he missed with a minor complaint. Will continue to build on his leadership skills this season and get back to his best after playing only seven games last year because of an elbow injury.
Sam Gilbert: Isn't expected to figure at any level until about round six with further surgery on his problematic left foot late last season delaying his start to training. Started running this week as part of his conservative recovery from the fracture, and is looking for a change of luck after two injury-hit years.
Hugh Goddard: Is learning the craft of a key defender and will look to increase his body size over the next few years. Faces strong competition for a spot in the backline if the senior players stay fit but has shown a willingness to learn and has put in a strong pre-season to date.
Dylan Roberton: Had a slight setback this week after developing hamstring soreness against the Brisbane Lions but had put in the hard yards before that. The Saints will look to use him as the linkman between defence to attack, but an increase in body size means he can also present as an option to pick up tall forwards from time to time.
Shane Savage: Will be settled across half-back where he showed promise in the second half of last season, using his running power and ball use. Won't figure in any more NAB Challenge games after tweaking his hamstring this week but is still expected to be available for round one.
Cameron Shenton: Put in a decent game against the Lions after being upgraded from the rookie list after three years. Is versatile, can play on tall and small opponents but can also play a role running the ball out of defence. Will look to start the year well.
Tom Simpkin: Was tracking well and had worked hard over summer before he needed minor knee surgery four weeks ago. Is coming back into training now and will look to ramp things up in a few weeks. Is expected to play more down back after being trialled at times as a forward last year.
Jimmy Webster: Another who was training well until he tore a tendon in his finger three weeks ago. Had surgery and will miss another 4-5 weeks, which means he might miss the start of the season, despite starting running this week. Will look at a role from half-back to back pocket to help set up the team offensively.
Nathan Wright: Has battled a calf during the pre-season after two seasons hampered by collision injuries but has trained hard around it. Will be looked at to fill a defensive role at times if he can stay fit, given his strengths one-on-one, and provide run out of defence with a slightly more attacking focus. - Jennifer Phelan
SYDNEY SWANS
Aliir Aliir: Entering his second season with the Swans, the young Sudan-born defender has continued to work closely with the club's senior backmen with a focus on improving his consistency. Boasts good closing speed and size and should make gains in the NEAFL after a full pre-season.
Heath Grundy: One of the Swans' key pillars in defence, Grundy has enjoyed an injury-free summer and remains one of the club's most durable players. He has impressed all pre-season in match simulation training when matching up on tall forwards Lance Franklin and Kurt Tippett, which will hold him in good stead for the year ahead.
Lewis Jetta: Could be poised for a move to half-back to cover the loss of Nick Malceski. The damaging wingman is still training a lot with the midfielders, but the club has worked on his defensive game to get him ready for a half-back role, where his run and penetrating kick would be assets. Will play a number of roles through the NAB Challenge and has been injury-free all summer.
Alex Johnson: The luckless defender is preparing to undergo a fourth knee reconstruction after infections undermined his recovery from three previous knee operations. The Swans have discussed giving him a line-coaching role with the NEAFL team this year given he will be sidelined for the entire season.
Zak Jones: A minor ankle injury kept the tough youngster out of the opening NAB Challenge match, but he is still expected to play pre-season games ahead of round one. After Jones' debut last season, the Swans hope he can follow the path set by Nick Smith and become a shutdown small defender with rebounding capabilities.
Jeremy Laidler: One of the standouts this summer at the Swans, Laidler has strung two solid pre-seasons together after an injury-interrupted run at Carlton. Appears to have cemented his role in the backline as an intercepting player who can also shut down an opponent. The Swans have high expectations of the 25-year-old.
Sean McLaren: Listed at 198cm, the young rookie has slotted in as a key position prospect with the Swans rather than a ruckman. Gives the club depth in its tall stocks, but will spend the year developing in the NEAFL having hardly missed a session over the summer.
Lewis Melican: The youngest player on the Swans' list, the rookie key defender has been noted this pre-season for his ability to pick up the game-plan and slot in during match simulation. Has a strong defensive game, typified by desperate smothers and tackles.
Nic Newman: The rookie defender has been in rehab ever since he joined the club after suffering a knee injury on his first day of training. He is expected to be available to play by round one and will cut his teeth in the NEAFL, where he will likely play across half-back.
Dane Rampe: Has quickly established himself as a mainstay in the Swans' backline in just two seasons, playing every game last year. Injury free, he has completed a heavy running workload, ranking No. 3 in the 3km time trial. The club has been keen to establish a second string to his game and he could be used more through the midfield in 2015.
Ted Richards: After a strong pre-Christmas training phase, Richards returned and suffered a hamstring tear that sidelined him for four weeks. The 32-year-old is back in training but missed the Swans' opening NAB Challenge match against the Brisbane Lions on Friday night.
Xavier Richards: Boasting electric pace for a 195cm defender, Richards is seen as an eventual replacement for the Swans' older key position players. Has worked closely with older brother Ted on his strength and bodywork in contests and will be given NAB Challenge opportunities.
Gary Rohan: Has worked closely with the defenders this pre-seasons, with the Swans hoping to capitalise on his line-breaking ability off half-back. Suffered a two-week hamstring injury post-Christmas, but is ready for the NAB Challenge.
Rhyce Shaw: At 33, Shaw still has an important role to play as a rebounding half-back for the Swans. His pre-season load has been managed, but he has completed everything asked of him and stepped straight in to play the first NAB Challenge match.
Nick Smith: Enters the new season as one of the game's most respected small defenders following his All-Australian selection in 2014. Has worked a lot in tandem with the small forwards, trying to improve his defensive bodywork. An important member of the backline because of his ability to shutdown the best small forwards and also provide direction to teammates. – Nathan Schmook
Rhyce Shaw and Gary Rohan represent the generational change coming in the Swans' backline
WEST COAST
Corey Adamson: The former baseballer will go through a development year. He was an outstanding junior footballer but did not play the game at all for six years. The Eagles are developing him into a running half-back. He has been given the task of playing on Josh Kennedy during some match simulation sessions to try to accelerate his learning.
Tom Barrass: Didn't play a senior game in his first year and hardly played any football in the WAFL because of injury. But he has had a good pre-season and may feature now in the absence of Eric Mackenzie. At 194cm he is a good size and has added some bulk in the gym. Will need to learn on the job but has the talent to by all reports.
Jamie Bennell: Talented running defender who showed glimpses last season. Adam Simpson sent him back to the WAFL mid-year to work on some of the defensive aspects of his game but he responded. Bennell was impressive against Carlton in the first NAB Challenge game, even drifting forward and kicking a goal. Looks set to be in the Eagles' best 22.
Paddy Brophy: The Irishman has slipped under the radar at West Coast but he has impressed with his ability to adapt. He is a tough competitor and they like him in a defensive role to utilise his pace. He has good skills for someone new to the game. Likely to start in the WAFL and might be in contention for senior selection if he shows good form.
Mitch Brown: The injury to Eric Mackenzie means Brown assumes the mantle as the No.1 key defender and becomes vitally important to the side. He is glad he stayed after requesting a trade a few years ago and has had an injury-free pre-season. Was held out of the first NAB Challenge clash but will return to face Port Adelaide on Sunday.
Sam Butler: Had a renaissance in late 2014 and was honoured with a one-year contract. Seems to have sorted some of the injury issues that have plagued him over his career. Following the retirement of his close friend Beau Waters, Butler is the only surviving member of the 2006 premiership team. Will play a role for Adam Simpson. He may not play every game in the seniors but he will be required at important stages and will be ready to deliver when called upon.
Xavier Ellis: The former Hawk became an important asset to West Coast last year after moving over under free agency. His ball use is exemplary and he is a key component to the side off half-back. His leadership is also invaluable for Adam Simpson as the second-year coach continues to implement a new strategy based on what Ellis played under at Hawthorn.
Shannon Hurn: Was named captain during the pre-season after shining as an acting captain last season following the retirement of Darren Glass. Vitally important player to the Eagles, not just for his leadership and his ability to marshal the defence, but more importantly for his kicking. Teams tag Hurn in defence because his ball use is so damaging.
Eric Mackenzie: It is a huge blow for the Eagles to have the reigning best and fairest miss the entire season because of a knee reconstruction. His injury seemed so innocuous when he fell to the ground against the Blues in the second term. He was unlucky not to win All-Australian honours in the each of the past two seasons.
Dylan Main: Young medium-sized utility who has the capabilities to play both forward and back. Played against the Indigenous All Stars and was used mainly in defence when he got his opportunity. Did not play a senior home and away game in 2014 and might be hard pressed to do so this season but injuries and form may give him an opportunity.
Jeremy McGovern: He has gone from being banished from pre-season training in the 2014 pre-season to one of the most important players in the side given the current injury crisis. Few players can play in defence, attack and even pinch-hit in the ruck as well as McGovern can. He will be used down back mostly after the loss of Mackenzie but Adam Simpson had every intention of using him there anyway in a sweeping role. He will swing forward when required.
Jackson Nelson: The 18-year-old has been impressive in the pre-season and has been rewarded with two appearances against the Indigenous All Stars and Carlton. He is a tenacious defender who plays taller than his 186cm suggest. He used the ball well in his two appearances and has impressed his teammates with his competitiveness.
Will Schofield: Like Mitch Brown he takes on greater responsibility now the Eagles have lost Eric Mackenzie. He is one of the most versatile defenders in the Eagles line-up due to his height, speed and endurance. He will be stretched at times with some of the jobs he will have but he is a selfless player. It is a good opportunity for him to become an integral part of the best 22.
Brad Sheppard: Has looked impressive during his two pre-season games against the Indigenous All Stars and Carlton. Adam Simpson has asked for Sheppard to step up and he is performing well as a medium-sized half-back who can be used as a distributor from defence. Appears set to be in the first-choice 22. - Alex Malcolm
WESTERN BULLDOGS
Shane Biggs: The former Swan looms as a handy pick for the Dogs, possessing sure foot skills and the ability to run and carry. Despite recent bone bruising in his foot, Biggs looks primed for a round one spot.
Zaine Cordy: The father-son recruit will miss the first few months of the season after having a shoulder reconstruction in January. The Geelong Falcons product has the ability to play tall or small.
Sam Darley: The former Giant played just five games in his debut season with the Bulldogs last season, but the running defender should be aiming to play a lot more this year, with his run and kicking skills not in abundant supply at Whitten Oval.
Matthew Fuller: It was a disappointing first year at Whitten Oval for the mature-age recruit from the SANFL. He will need a big 2015 if he is to remain at the club, but he should get plenty of opportunities at senior level if his form warrants it.
Brett Goodes: Redrafted as a rookie after only two seasons on the senior list, the 31-year-old is an insurance if injuries strike.
Declan Hamilton: The nephew of Darren and Andrew Jarman has coped well with the demands of his first pre-season at AFL level. A smart and creative running defender who uses the ball well.
Joel Hamling: After three years at Geelong without cracking a senior game, the key defender should plenty of opportunities to make his long-awaited debut at the Dogs. Did some nice things in the NAB Challenge win over Richmond last weekend.
Jason Johannisen: The 22-year-old should become a key plank in new coach Luke Beveridge's attacking game plan. The South African-born speedster loves to run and carry, but needs to work on the defensive side of his game.
Jordan Kelly: After failing to play a senior game in three years at Hawthorn, the 21-year-old is given another chance on the Dogs' rookie list. The medium defender is strong overhead and a good decision-maker.
Dale Morris: A pillar of the Dogs' defence for a decade, Morris still has a big role to play down back. The veteran will also be on-field coach to emerging defenders Michael Talia, Fletcher Roberts and Zaine Cordy.
Robert Murphy: The new skipper showed in week one of the NAB Challenge he has lost none of his skill or speed. The 32-year-old is a vital cog down back, but his leadership will be just as important.
Daniel Pearce: The dashing small defender finds himself on the rookie list after battling injuries in his first three seasons at the club. Needs to have a big season in 2015.
Fletcher Roberts: The developing tall has battled groin tightness recently, but the club has high hopes for him as a long-term key defender. The 21-year-old is strong overhead and has the ability to push forward.
Jordan Roughead: Recently elevated to vice-captain, the 24-year-old will go toe-to-toe with the competition's monster forwards again. The jury is still out on whether he is a better ruck/forward than defender.
Michael Talia: With the Dogs crying out for more height down back, 2015 looms as a big year for the 22-year-old. Had a good start to the NAB Challenge, defending stoutly and using the ball well.
Lukas Webb: The hard-running midfielder possesses a deadly left boot and his arrival will help address the Dogs' shortage of elite kicks. The draftee will start his tenure at Whitten Oval playing across half-back while he builds an AFL-standard physique and tank.
Easton Wood: The 25-year-old was one of the Dogs' best in the NAB Challenge win over Richmond last weekend, with his strong overhead marking and run a standout. He gives Luke Beveridge plenty of flexibility with his ability to play tall or small. - Ryan Davidson
