With the NAB Challenge approaching, AFL.com.au will examine all the defenders, midfielders and forwards on your club's list.  

NORTH MELBOURNE
Cameron Delaney: Has had a disrupted pre-season with a toe injury, but is hopeful of returning for North's opening NAB Challenge game against Carlton. Impressed in his one senior game in 2013, in round 18 against Melbourne, and should push for more senior games if he stays fit.
Michael Firrito: Endured a tough 2013 with injury and form but looks well placed this year, having completed far more work this pre-season than last. His ability to play on talls and smalls remains a valuable asset for North.
Nathan Grima: Has formed a reliable combination with Scott Thompson in recent years, but the key defender has waged a constant battle with his body. Grima is gradually returning to full training after battling back soreness and is expected to play in the latter part of the NAB Challenge.
Lachlan Hansen: The reborn defender became an important member of North's backline last year with his intercept marking. Has focused on bulking up this pre-season so he can match power forwards in one-one-contests.
Luke McDonald: The father-son recruit is a strong chance of round one selection after impressing in North's match-practice drills this summer. Quick and extremely competitive, the left-footer is likely to start his AFL career across half-back.
Scott McMahon: After struggling with injury and fitness last season, he will enter 2014 the fittest he has been for several years after completing a full pre-season. Has the defensive nous and sure foot skills to reclaim a senior spot.
Aaron Mullett: One of North's most improved players last year, the dashing half-back has been hindered by a toe injury this pre-season. Recently resumed running and is expected to play in North's later pre-season games.
Scott Thompson: Last year's All Australian full-back had minor post-season knee surgery, but resumed full training before Christmas. One of North's most valuable and dependable players.
Max Warren: A solid performer with North Ballarat in the VFL over the past two seasons, the small defender/tagger enters his third season on North's rookie list looking to push for senior selection.
Mitch Wilkins: The attacking defender had an encouraging year in the VFL with North Ballarat in 2013. Has built his strength this summer in an effort to improve his contested play.
Sam Wright: Set to return to half-back in 2014 after struggling as a forward last year. Had post-season shoulder surgery but is close to resuming contact training. - Nick Bowen




North father-son draftee Luke McDonald leads his teammates during training. Picture: AFL Media

ADELAIDE
Luke Brown: Impressive 2013 season and is striving to increase his offensive output as well as his on-field leadership. Along with Rory Laird, Brown has established himself as a best-22 player.
Cam Ellis-Yolmen: Hasn't consistently produced his best, but coaches insist he's got X-factor that could see him become something special. Big year of development in the SANFL ahead and possible AFL debut.
Kyle Hartigan: Showed he has what is needed in the AFL last year and will replace Ben Rutten at times in 2014. His first full pre-season has done his fitness a world of good.
Ricky Henderson: Hugely important versatile player who looked at home in defence last year before injury ended his season. He's recovered from knee surgery and appears likely to play prior to round one.
Jake Kelly: The coaching staff say they've had to reel Kelly in this summer, such is his thirst for the contest. He'll start the season as a rookie, but summer form suggests an elevation is a possibility.
Rory Laird: Really cemented his place in defence last year and coaches love his attitude. He's a hard worker on the track and does plenty of homework on the opposition.
Andy Otten: Knee issues restrained him prior to Christmas but Otten is fast returning to full training in his quest to back up a sensational 2013 season that saw him become a versatile defender/forward.
Brent Reilly: Shoulder surgery has hindered his pre-season but he's almost back to full training. He's managed most of the club's running, so his fitness levels are solid. Might play a trial before round one.
Ben Rutten: The 30-year-old hasn't shown any sign of slowing down this summer. Set to reduce his workload this year to ensure he's fresh at the business end of the season.
Sam Shaw: His body really let him down in 2013 but he's unscathed so far this summer and is like a new recruit this year. Flexible key-position player who coaches say could find himself in attack as well as defence this season.
Sam Siggins: Still pretty raw, but with plenty of promise. He's unlikely to see AFL action this season but will benefit from playing with Adelaide's SANFL side this year.
Daniel Talia: Continues to go from strength to strength and has hardly missed a session this pre-season. Will be looking to increase his on-field leadership in 2014 as he becomes one of the club's elites.
Luke Thompson: Has enjoyed a great, injury-free pre-season and coaches have been impressed with how he's looked on the track. Failed to play a senior game last year due to injury. - Harry Thring

BRISBANE LIONS
Jed Adcock: The backline general is now also the sole skipper after taking the reigns from Jonathan Brown. Can lock down smaller opponents and leads by example with his fearless attack on the ball.
Jordon Bourke: A rookie with one season under his belt and despite some good signs late in the 2013 NEAFL season, still likely to need another year or two of development before nudging senior selection.
Justin Clarke: Huge improver last year in his 14 games, and a big chance to start alongside Daniel Merrett in a key defensive post. Has overcome shoulder surgery and is back into full contact work.
Tom Cutler: Draftee taken as a third defender that can play on both talls and smalls. Likely to start the season in the twos.
Darcy Gardiner: Drafted as a key defender, but at 191cm and with good pace, is likely to switch between defensive posts. Has been in the rehab group with a shoulder injury and will ease his way into the season.
Mitch Golby: Quickly becoming one of the most crucial players in the back half, the 22-year-old has excellent foot skills and is reliable in a one-on-one situation. Golby plays back pocket, and is an emerging leader who is ready to take another step up.
Ryan Harwood: In and out of the team over his first four seasons, Harwood played 12 of the final 13 games in 2013 and now has the chance to cement a spot at half-back. Has excellent speed, loves to take a bounce and should get first crack.
Matt Maguire: Now 29, the former Saint has been excellent when on the park the past two years. Might start behind Clarke in the battle for a starting spot, but is great insurance and won't let anyone down when he gets a chance.
Daniel McStay: Another draftee that will need time in the reserves, McStay is a tall defender that should learn plenty behind Merrett and Maguire.
Daniel Merrett: Has been used forward out of necessity in recent years, but no doubt the Lions are best when Merrett is at full-back. Fully recovered from a broken ankle and will start in round 1.
Joel Patfull: The back-to-back best and fairest is one of the most under-rated players in the League. Patfull is ideally used as a third defender, but can play on talls and smalls and is one of the first players picked each week.
Patrick Wearden: Has been in the system two years and looks ready to push for a senior debut across half-back. Consistent reserves performer who is courageous and a good decision-maker. - Michael Whiting




The Lions have swung full-back Daniel Merrett forward in recent years. Picture: AFL Media

CARLTON
Josh Bootsma: The tall, lean runner needs to make inroads but will presumably find it difficult to establish himself in the Blues' backline given several others appear ahead of him. Entering his third season, he signed a new two-year deal last August before being discussed at the trade table.
Sam Docherty: In his first pre-season with the Blues, the former Brisbane Lion has impressed with his approach and appears likely to be given an early opportunity to impress in defence.
Andrejs Everitt: The ex-Swan and Bulldog arrived at Carlton in the best shape of his career after completing a rigorous martial arts camp in Thailand during the off-season. The Blues are excited by the flexibility he provides as a half-back/wingman.
Cameron Giles: The No. 39 draft pick – a tall, dashing backman who could develop into a swingman and back-up ruckman – was eased into the pre-season workload but could come into contention for a third-tall defensive role at some stage this season.
Michael Jamison: Shoulders permitting, the longtime backline leader will be primed to enhance his standing among the AFL's best full-backs. Also has an important role in helping to school defensive hope Matthew Watson.
Andrew McInnes: The disciplined defender is probably vying with Simon White and perhaps even Everitt for the third-tall defensive role. His ability to also play on a small forward could prove the difference at times.
Heath Scotland: Carlton's oldest player is now on the club's rookie list but, far from being simply a back-up option, the 33-year-old is still favoured to be a regular member of the Blues' back six. A steadying influence.
Kade Simpson: The Blues' reigning club champion thrived after being shifted to half-back, and coach Mick Malthouse likes backmen who are courageous, composed and use the ball well, so Simpson appears destined for a similar role.
Zach Tuohy: The vigorous Irishman played mainly as a lockdown defender last year and could expand his game to have the occasional run on a wing, where his long kicking could provide another scoring option.
Andrew Walker: The versatile, high-leaping dasher is expected to continue as a back-half playmaker but the arrival of the likes of Docherty and Everitt could give the Blues the luxury of throwing Walker forward occasionally, adding some much-needed unpredictability.
Matthew Watson: The big left-footer has set his sights on holding down a key defensive position, both for his own development and to enable Lachie Henderson to play predominantly in attack. Has recovered well from a late-season broken foot.
Simon White: After suffering a season-ending fractured neck last year, the utility has made a full recovery and is on track to add significantly to his career tally of 26 games. - Ben Collins

COLLINGWOOD
Tony Armstrong: Transferred from the Sydney Swans in the off-season and has settled in well at the Westpac Centre. Armstrong's ball use will be an asset for the Pies, but he faces a tough task breaking into the best 22.
Nathan Brown: With the structure of the Pies' backline still a work in progress, this year shapes as a decisive season for Brown. Locking down on his opponent comes naturally, but the Pies will be hoping he can develop some attacking flair to complement his defensive skills.
Jack Frost: The rookie bolted to play the first four games last season, before a knee injury cut short a promising start to his career. May face limited opportunities if Reid, Brown and Maxwell are all fit.
Corey Gault: The versatile youngster played at both ends of the ground in the VFL last season. As a defender, he held his own against Joe Daniher and Jesse Hogan, before a groin injury ended his season. Set for another development year.
Lachlan Keeffe: Bounced back from a serious knee injury to play the final eight games of the 2013 season. He has outstanding athleticism and his football knowledge is getting better with each match he plays. Added to the leadership group during the week.
Nick Maxwell: Has relinquished the captaincy and will now turn his sole attention to leading Collingwood's backline. The 30-year-old is the chief organiser of the defence and plays a crucial role in chopping off the opposition's scoring opportunities.
Adam Oxley: Added to the senior list after a dominant year in the VFL. Oxley is very much in the Heath Shaw-mould as a rebounding defender and could push for senior selection early in the season. One to watch.
Ben Reid: Will Reid play in defence or up forward? The 24-year-old is an All Australian calibre defender, but he had great success when playing close to goal last year. Will be called upon to do a bit of both in 2014, but his starting position is likely to be in defence.
Paul Seedsman: Hip surgery will force Seedsman to miss the start of the season, so the dashing defender will likely have to work his way up from the VFL. Showed significant improvement in 2013 and is on the upward trend.
Ben Sinclair: Had shoulder surgery at the end of the season and is nearly in full training. Transformed himself into a lockdown small defender after Toovey was lost for the year. The competition for that small defender role is on in earnest.
Alan Toovey: Has worked methodically in his rehab from a torn ACL suffered on Anzac Day last year. Toovey's dependability was missed dearly in 2013 and his return will strengthen the Magpies' backline. On track for round one.
Marley Williams: A top-10 finish (seventh) in the club's 2013 best and fairest count capped a terrific season for the 20-year-old. Williams' preparedness to attack the ball, in the air or on the ground, won him plenty of admirers in 2013.
Peter Yagmoor: Yagmoor responded to his demotion to the rookie list with a solid year at VFL level. His precision kicking was a clear stand out. Likely to spend another year in the VFL, further learning the nuances of the game. - Ben Guthrie


ESSENDON
Jason Ashby: Although he wasn't able to break through for a senior game last year, the club is happy with Ashby's progress. Into his second season, the 19-year-old is a smart mover expected to get an AFL opportunity this season. 
Kurt Aylett: Recruited to the Bombers from the Giants last year, Aylett has pace and running ability. He can play across a few positions, but likes to take the game on. When fully fit he uses his athleticism well.
Mark Baguley: The former rookie's development last year was underlined when he was named the club's most improved player. A lock-down defender, Baguley held the likes of goalsneaks Eddie Betts and Stephen Milne to quiet games last year.
Alex Browne: A big year for Browne, who is into his fourth season with the Bombers. Attacks the ball, runs with it and makes things happen, and can also shift up to the midfield. Running and intensity has improved and will be looking to build on his eight career games.
Lauchlan Dalgleish: The quick half-back broke into the team for the final three games of 2013. If he can establish himself in the Bombers' defence it may release Hibberd or Dempsey to play a more offensive role. 
Courtenay Dempsey: A chest injury put Dempsey out for a few weeks last year before a severe hamstring tear ended his season in round 19. His run and carry off half-back makes him one of the club's most important players when fit. 
Shaun Edwards: Edwards can play all over the ground, an attribute which attracted the Bombers to the former Giant. Has an AFL grounding and good height to match his pace. Pre-season has been solid when on the track.
Dustin Fletcher: Set to be used spasmodically according to Thompson, Fletcher needs just one more match to become Essendon's leading games player. Has trained well over summer.
Sean Gregory: Was identified as soon as he was drafted in 2012 as a project player, given his lean frame – only 76kg – but he finds a way to spoil when he looks out of a contest and is improving. 
Cale Hooker: An important cog in a functioning Essendon line-up. The club's leading intercept marker and often takes the opposition's best forward, too.
Michael Hibberd: A quality performer in 2013, having a breakout season for the club across half-back with his strong marking and piercing left-foot kick. May spend some time even further up the ground this year.
Michael Hurley: Hurley has trained all pre-season as a defender and new coach Mark Thompson says he will play him in the backline and leave him there. Aggressive and strong, Hurley will be looking for his most consistent season after injury niggles in 2013. In full training after post-season surgeries.
Tayte Pears: Enters perhaps the most important season of his career. Has struggled to play consistently in the seniors since his navicular injury several seasons ago, but signed a two-year deal last year and is determined to make a backline spot his.
Dylan van Unen: Didn't make a huge impact in the VFL last year, despite being recruited as a mature-ager via Frankston. Reads the ball well and can set up the play. - Callum Twomey


Essendon's Michael Hurley is set to find his home in defence this year. Picture: AFL Media

FREMANTLE
Zac Dawson: Played 24 matches last season and has trained without interruption during the pre-season. One of Ross Lyon's most trusted defenders and will be hoping for another consistent year.
Paul Duffield: Only missed three games last year, with calf issues. Has had a strong pre-season and will continue to command the majority of the kick out duties. Could reach 150 games this season.
Garrick Ibbotson: Has just started to join main training after recovering from surgery to fix a tendinopathy issue in his Achilles. Was outstanding last season until the injury ended his year in round 19. Will push hard to get back into the first-choice 22 for round one.
Michael Johnson: Wonderful season in 2013, culminating in a richly deserved All Australian berth. Has been managed through the pre-season, but has been training with the main group fairly regularly and will be a key figure again.
Luke McPharlin: Missed eight weeks with a torn calf late in 2013 but played all three finals. Looks fit after a good pre-season. Should play the majority of the year but will be carefully monitored to avoid major injury.
Clancee Pearce: Had an excellent 2013 until he injured his Achilles in round 23 and missed the finals. Has been doing a lot of running away from the main group to regain full fitness. Looks strong and might be a chance for the NAB Challenge but more likely will push for round one. 
Alex Silvagni: Has been on a managed program in the pre-season. Played 10 matches in 2013 and signed a one-year extension. Will have to work hard to gain a permanent spot in the line-up.
Tanner Smith: Played just one match in his debut season against Hawthorn in round four. Is capable of playing both forward and back but Ross Lyon is keen for him to be a long-term defender. Has been matching up on Scott Gumbleton in match simulation drills. Could play the NAB Challenge but will need injuries to play in the premiership season.
Lee Spurr: Following his best season at AFL level, Spurr has been elevated to Freo's leadership group. Has been on an individual program through parts of the pre-season but should be fine for round one.
Cameron Sutcliffe: Turned from a specialist sub into a first-choice player last season. Played 19 matches including all three finals and won praise from his coach. Looks super fit and could push more through the midfield this season.
Tom Vandeleur: Pick No. 32 in the rookie draft. He's a versatile defender at 194cm and has participated in some of the main group work. Will be a project player and will spend time developing in the WAFL at Peel Thunder. - Alex Malcolm

GEELONG
Jimmy Bartel: There has been some talk down at the Cattery that Bartel will play more up forward this season, but last year the backline was his home. Great at launching chains of possessions that lead to scores.
Jed Bews: Was on the verge of breaking into the Cats' line-up last year and has been a strong performer during the pre-season. Earmarked to become an attacking defender.
Mitch Brown: Has been tried forward and back, but seems to have been more effective in the backline in recent years. Must take the next step this year.
Corey Enright: Brilliant reader of the play who was sorely missed in last year's preliminary final when he was sidelined by a knee injury. Is now full fit and ready to attack his 15th AFL season.
Cameron Guthrie: Being groomed to take over Enright's role. Played on Hayden Ballantyne, Angus Monfries and Cyril Rioli in last year's finals series and kept all of them goalless. Rarely beaten in a contest.
Joel Hamling: Project player who remains a project. Can also play up forward.
Taylor Hunt: Played as a shutdown midfielder last season but is set to spend a lot of time in the backline this year. Needs to rebuild his confidence.
Jake Kolodjashnij: Draftee who played as a key defender for Tasmania at last year's NAB AFL Under-18 Championships. Is elite when it comes to incept marks and intercept possessions. Could play an AFL game or two this year.
Tom Lonergan: Conceded the most goals of any player at Geelong last year but that was mainly because he lined up on the opposition's best forward most weeks. Will get the big jobs again this year.
Andrew Mackie: Made last year's All Australian team, which was great reward for many seasons of consistent play. Has the ability to stop an opponent but attack at the same time. Will again be a key player.
Jared Rivers: Had an indifferent first season at the club in 2013, with a knee injury sidelining him for a long period. Has had a big pre-season and should provide vital back-up for fellow key defenders Lonergan and Taylor.
Harry Taylor: Last year's All Australian centre half-back is perhaps the best key defender in the competition. Was involved in 60 one-on-one contests in 2013 and was only outmarked in one of them.
Jackson Thurlow: The Cats believe he is a star of the future. Had a slow start to the pre-season after needing hip surgery but has stepped up his workload since the Christmas break.
James Toohey (rookie): A project player who will be given plenty of time to develop in the VFL. - Adam McNicol




Geelong star Harry Taylor is one of the premier key defenders in the League. Picture: AFL Media

GOLD COAST
Jackson Allen: Two years in the system but will likely struggle to get games early. One of the best kicks in the club, but still tidying up other areas of his game.
Greg Broughton: Up and down first season at the Suns, but the 27-year-old former Docker brings experience and composure to a young backline.
Clay Cameron: An AIS Academy graduate, Cameron is being groomed as a long-term key position defender. Still a little way off, but wouldn't surprise if he played games as the year wore on.
Jack Hutchins: Was tried on the wing last year but drifted out of the team as the season wore on. Has speed and a defender's mentality, but will need to start the year well to win a spot.
Steven May: Played predominantly forward in 2013, but with Tom Lynch back fully fit, May will probably slide back to be a key defender with his size, speed and thumping left foot.
Trent McKenzie: One of the longest kicks in the AFL, McKenzie showed he was also an excellent one-on-one defender last season. Continues to improve and a crucial member of the side.
Tom Murphy: Traded in from Hawthorn before last season and proved just as vital with his voice as his actions. Terrific leadership qualities but will battle for a spot if everyone is fully fit.
Leigh Osborne: Rookie about to begin his second season, and despite playing one game late in 2013, will need some luck to crack it this year. Is a solid defender with a good left boot, but is a bit down the queue.
Henry Schade: Taken in the 2011 draft, the 20-year-old key defender is slowly adding size to his slim frame. Might need another year before seeing senior footy but is edging closer.
Matt Shaw: Big improver and highly under-rated. Shaw is aggressive and loves to take the game on. Should add plenty to his 52 games.
Seb Tape: Made a slow comeback last year after a knee reconstruction in 2012, but with a full pre-season behind him, should be in the round 1 team. Courageous and diligent, Tape is highly regarded and respected at the Suns.
Jeremy Taylor: Injury has restricted him to 10 games in three years, but Taylor is a terrific athlete and now has a full pre-season behind him. Down the pecking order and needs a huge year to retain his spot on the list.
Rory Thompson: After a breakthrough season in 2013, the red-haired fullback is already one of the Suns' most important players. Has overcome an off-season hip arthroscopy and will be available for Round 1.
Matthew Warnock: Been terrific since his acquisition from Melbourne two years ago, but a broken arm rubbed him out for most of last year. Might find it hard to squeeze in with the Suns looking to promote their young defenders. - Michael Whiting

GREATER WESTERN SYDNEY
Matt Buntine: A punctured lung heading into the 2013 season put him behind the eight ball, managing just three appearances for the year, and it's an important season ahead for the talented youngster.
Aidan Corr: The Irish-born defender showed some strong signs and good poise over his 10 games as a rookie and needs to add a little size to his frame this coming year.
Phil Davis: Limited by a back injury last season, Davis will be keen to re-establish himself as the Giants' fullback and the mainstay of the backline in 2014.
Sam Frost: Blessed with plenty of athletic gifts, Frost has been used in a variety of positions and has spent the pre-season down back. With Tim Mohr sidelined, an opportunity awaits to add to his five career games.
Tim Golds: It's an important time for the third-year defender, who has played three games to date and is running well during pre-season training.
Curtly Hampton: Benefiting enormously from the arrival of Heath Shaw and Josh Hunt, the gifted Hampton is performing well in training and looks set for another step up this year.
Nick Haynes: A young Giant that really stepped up over the back half of last year, the athletic Haynes appears set for a big season ahead as he stamps himself as a regular member of the back six.
Josh Hunt: Eased into the pre-season after another long campaign with Geelong, the veteran adds some bulk and that famous long kick into the young backline.
Adam Kennedy: Another young defender learning from Shaw and Hunt's tutelage, he has put on some size and is developing into an important small defender.
Tim Mohr: GWS' most consistent defender last season, a training mishap left Mohr with a foot fracture and in a moon boot and he will miss the opening few rounds of the year.
Lachie Plowman: The third pick in the 2012 NAB AFL Draft, the talldefender played six games over the opening half of the year before spending some time in the midfield in the NEAFL. But key defence is his position and he has put on some size in the off-season.
Heath Shaw: Another to slot straight into the leadership group, Shaw is focused and dedicated on being a good example for his young teammates on and off the field.
Zac Williams: One of GWS' real surprise packets of 2013, the speedy small defender has moved all the way from the Giants' academy to a spot on the senior list. One to watch. - James Dampney

HAWTHORN
Grant Birchall: One of the Hawks' most damaging playmakers and often manned by defensive forwards. At 26, Birchall is at the peak of his powers.
Kaiden Brand: The key defender will continue his development with Box Hill in the VFL this year. Needs time to build strength and bulk, but has made some inroads this pre-season.
Shaun Burgoyne: Had minor post-season ankle surgery but has enjoyed his best pre-season in some years. Can turn a game in the middle or in attack, but likely to spend most of his time in defence in 2014.
Kyle Cheney: Has struggled to break into Hawthorn's defence in his three seasons at Waverley, but another good pre-season has him well placed to seize any opportunity that comes his way.
Taylor Duryea: Unlucky to miss the Hawks' successful finals campaign last year, but has a golden opportunity to cement a senior spot in 2014 after Brent Guerra's retirement.
Josh Gibson: Last year's best and fairest winner had right wrist surgery after the Grand Final, but will be fully fit to help cover the suspended Brian Lake's absence in this season's first three rounds.
Kurt Heatherley: The New Zealander's 2013 was disrupted by hip surgery, but he performed well with the Sandringham Dragons in the TAC Cup in the latter part of the season. Has completed a good portion of this pre-season, impressing with his speed, recovery skills and competitiveness in match-practice sessions.
Luke Hodge: The skipper has enjoyed another injury-free pre-season and will continue to marshal the Hawks troops from half-back and pinch-hit in the midfield.
Jordan Kelly: Played half-back in Box Hill's 2013 VFL premiership team. Courageous and a hard worker, he should push to make his AFL debut in his third season with the Hawks.
Brian Lake: The 2013 Norm Smith medallist will miss this season's first three rounds through suspension, but is set to return in good condition after a strong pre-season.
Angus Litherland: The 192cm defender enjoyed a breakthrough year with Box Hill in the VFL last season after finally putting a bad injury run behind him. Has good speed and should continue to improve.
Sam Mitchell: The former skipper made a successful transition to defence last year and is likely to spend considerable time across half-back again in 2014.
Ben Ross: The former Kangaroo and 2012 Liston medallist gets a second AFL chance on the Hawks' rookie list and looms as a readymade option at half-back or in the midfield.
Ryan Schoenmakers: Versatile key-position player who is likely to return from his 2013 knee reconstruction via defence. Has started skills training and should return to match-practice drills soon, putting him in contention to play in round one.
Matthew Suckling: The half-back's comeback from a knee reconstruction is well advanced, with a return later in the Hawks' NAB Challenge campaign likely. Suckling's penetrating left foot should help cover the retirement of Brent Guerra. - Nick Bowen

MELBOURNE
Mitch Clisby: Battled hard after being given an opportunity under Neil Craig. Has a slim frame but he is courageous and was prepared to take responsibility for kick-ins. He will put pressure on the incumbents and provide solid back-up as a small to medium defender.
Lynden Dunn: After a terrible start to last season, Dunn was very good in the second half of the year as he settled down in defence. He wins one-on-ones, takes intercept marks and applies pressure. He is underrated, has had a good pre-season and could be an elite defender if he can gain some momentum.
James Frawley: It's a big year ahead for the restricted free agent, who is holding off re-signing until the club's direction becomes clearer. He played under duress for the early part of last season but he still showed his class, defending well without any midfield protection. Set himself a goal of running more pre-season and achieved it. Has had an uninterrupted summer and is set to stamp himself on the competition. 
Colin Garland: An operation to remove a bone spur from his ankle on January 22 is expected to sideline him for the next four to six weeks. However he looked to moving well when inducted into the leadership group and has a good fitness base. Last year's best and fairest runner-up has become a general in defence.
Alexis Georgiou: A defensive backman who can negate opponents. Comes in with a mature body and mind after four years at Norwood and is expected to make the most of his opportunity. He is a good kick but does not take enormous risks. Has been solid in pre-season.
Jack Grimes: After playing in the undermanned midfield because the team was desperate he will get a chance to settle in defence. Before becoming captain, he shaped as a quality half-back flanker and moves the ball well. Grimes is sure to benefit from completing his first injury-free pre-season. 
Neville Jetta: Has not cemented a spot despite being tried in all parts of the ground. Shapes as a tough, willing small defender and he has a great attitude. He has had a relatively injury free pre-season and could be a rapid improver.  
Tom McDonald: Had a shoulder reconstruction post-season, which meant he started contact work late. As usual he excelled in the running drills, finishing second in the pre-season time trial run over three kilometres. Applies good pressure and takes on the game's best players but still has plenty of improvement left in him, particularly with his kicking.
Daniel Nicholson: An elite runner but his kicking lets him down. No surprise that he won the three-kilometre time trial. Has been tried as a tagger as well as a small defender and will start behind Terlich in the battle for that position. Needs to start the season well. 
Cameron Pedersen: He plays well in defence at VFL level but struggles to translate that form into the AFL. A big-bodied player he shapes as insurance if injury strikes one of the Demons' talls. Has put in over the pre-season.
James Strauss: Has been disappointing and appears to lack confidence but teases occasionally with an exceptional kick or a quick switch of play from defence. Had a shoulder operation post-season but returned to full training in December. Shapes as a make or break season for the 23-year-old.
Dean Terlich: Continues to work on his defensive game after a solid debut season with the Demons. Although he finished third in the club best and fairest, he has plenty of rough edges to polish. Can't fault his attitude as he never drops his head and plays best when the team needs him most. - Peter Ryan
 
PORT ADELAIDE
Darcy Byrne-Jones: Still learning the game but has really impressed coaching staff in his first pre-season. Big tank and has managed to get through what's been a tough summer. 
Alipate Carlile: His pre-season has flowed on from what was a great 2013. He's in much better shape than he was a few years ago and is a vital component of the backline. 
Tom Clurey: The big-bodied defender has been sensational this pre-season, taking his game to new heights. Could well be in line for an AFL debut if his development continues in the SANFL.
Sam Colquhoun: Showed much promise as a flexible defender in 10 games last year as the youngest player on the list. His time trials have been brilliant this summer and he'd expect to push for more AFL exposure this year. 
Campbell Heath: The former Sydney Swan was solid last year with 12 games. Good leader on the field who could find himself in a number of positions in 2014.
Jack Hombsch: Hip surgery delayed the start to his pre-season but he's back into training and should be fit to feature in the NAB Challenge. Has bulked up to better handle big forwards.
Jarman Impey: Couldn't have started his AFL career any better. Has been super impressive on the track and from all reports is closing in on a round one debut.
Tom Logan: The dogged defender had surgery on his thumb after a sensational 2013 finals series, but is back into full training. Faces stiff competition for a spot in back six.
Tom Jonas: Really cemented his place in Ken Hinkley's starting side last year and his pre-season suggests he'll build on that form in 2014. Hard-working, no-frills player – coaches love what he brings.
Cam O'Shea: Super 2013 season culminating with a top-10 best and fairest placing. Has hardly missed a beat this summer and is now one of the defence's most valuable.
Jasper Pittard: Second half of the year was solid, importantly though he managed 13-straight games after several injury-interrupted seasons. He's a lock at half-back when fit and now looks in terrific touch. 
Sam Russell: The rookie has had an interrupted pre-season due to injury after arriving from Carlton, but Russell's running ability should hold him in good stead if he performs for the Magpies in the SANFL.  
Lewis Stevenson: Played some good footy last year in his first for the club and has trained solidly all summer. Has worked hard on his game when not in possession.
Jackson Trengove: A jarred knee put a dent in his 2014 preparation, but he managed to build a strong fitness base before the January injury. One of the most important players in the side.

RICHMOND
David Astbury: Is expected to figure early in the season if he holds his form after an outstanding injury-free pre-season. Is fifth/sixth in running and has played at full-back and also up the ground.
Jake Batchelor: Is also benefitting from a full pre-season. Has major strengths including spoiling and one-on-one work, and is working on deficiencies to allow more consistent football at AFL level.
Troy Chaplin: Is rated ahead of where he was 12 months ago in regards to his knee. Is being managed well and the Tigers are rapt with how much training he's done. Will be important in a leadership sense again.
Ben Darrou: The developing third year rookie has surprised coaching staff with the inroads he's made, working with Mark Williams and Greg Mellor. Played on Aaron Edwards in an 18-on-18 game and showed promise. Pushing to play in the NAB Challenge.   
Matt Dea: Has had a strong pre-season after calf and shoulder injuries in 2013. Has played on Tyrone Vickery and Jack Riewoldt in a bid to increase his scope of opponents and give him more chance of playing seniors this year.
Dylan Grimes: Has to be managed through summer because of his injury history but has had more of a pre-season than he has in the past. His versatility will be important if he can manage his first full season in five years.  
Ben Lennon: First-year player who is comfortable playing midfield and forward but is learning the craft across half-back with the ball in front of him. Has impressed with his kicking and it's possible he could be eased in.
Dustin Martin: Has spent time training with the defenders this summer and will play back, forward and through the midfield. Will be used to attack off half back and help set up with his time spent in defence to develop his all-round game.
Matt McDonough: Drafted as a forward but has been playing in defence this pre-season. Has trimmed up, can find a target on both sides and is considered to have put together a really promising summer ahead of his second season.
Steven Morris: The Tigers' hardest trainer has taken his fitness to another level over the summer. Does everything at 110 per cent and may play on the ball at times this year given his impressive engine.
Alex Rance: Will look to put together a consistent season after a commanding start to 2012 and a strong end to last season. Is supremely fit, has had a full pre-season and is rated as one of their most important defenders.
Nick Vlastuin: Hasn't shown any signs of trailing off after 18 games in his debut season. Has increased his fitness, having not possessed a natural midfielder's engine, but will push into the middle at times this year. - Jennifer Phelan




Backline brothers? Nick Vlastuin and Dustin Martin battle each other at training. Picture: AFL Media

ST KILDA
Josh Bruce: The 21-year-old crossed from Greater Western Sydney with plenty to learn and he has applied himself well this pre-season. His intensity in training has stepped up significantly in the last month and he will be competing for one of the key defensive posts.   
Luke Delaney: Had a hip operation at the end of last season and made a slow start after crossing from North Melbourne. The 21-year-old has moved into full training in the last three weeks and the club is confident he will be available for the opening NAB Challenge clash. 
Sean Dempster: Continues to enhance his reputation as an ultimate professional and another strong season from the All Australian appears likely. Has played tall and small in match simulation drills and his flexibility should be utilised this season. Hitting new levels with his fitness and strength.    
Sam Fisher: Seen by the Saints as an added bonus this season after just nine games in 2013. A foot injury ended his year, but he has made a full recovery and is competing well in one-on-one contests. He notched his best time trial results for two years.
Jarryn Geary: The most impressive defender this pre-season, Geary has utilised his elite running ability and continued to build his rebounding game. His ability to provide offensive run has been a consistent feature of the Saints' backline set-up this summer. His leadership also continues to grow.
Sam Gilbert: Has used his size and running ability well in match simulation drills and is another versatile option who has matched up on tall and small opponents. His coaches have been impressed with his leadership and ability to roll off opponents to support teammates.
James Gwilt: After two seasons interrupted by knee injuries, Gwilt's coaches have made mention that he has his speed back. The senior defender has been training at a high intensity and has hardly been beaten in match simulation drills. One of the most impressive performers since returning to full training after missing the Colorado training camp.      
Dylan Roberton: Suffered an ankle injury late in 2013 and is slowly returning from surgery with a focus on improving his fitness. Expect the Saints to assess how he handles the next fortnight of full training before deciding if he if he plays in the opening NAB Challenge match. 
Tom Simpkin: Was restricted early by a leg injury and missed the Colorado training camp, but his intensity has lifted in the last month. The Saints' recruiting leaves Simpkin down the pecking order in defence, but he has shown an ability to fight his way into the team.
Jimmy Webster: The left-footer has floated around the lines, but appears most likely to feature across half-back in 2014. His precise ball-use has been impressive and he is being given licence to take the game on. Has worked just as hard off the track reviewing his training with new backline coach David Teague. 
Nathan Wright: Missed the Colorado training camp because of shin soreness but is back in full training now, moving between the backline and midfield. Has impressed with his application on the track and in the gym. His last week of training in particular has been very strong. - Nathan Schmook

SYDNEY SWANS
Aliir Aliir: The young Sudanese draftee is having some trial at AFL level. He has spent time on Lance Franklin, Kurt Tippett and Sam Reid during his first pre-season with the club.
Matthew Dick: A running defender and a good competitor, he has put on some size and strength as he prepares for his second year on the list.
Heath Grundy: One of the more undervalued defenders outside the club, the consistent Grundy has been on a limited program to date but is well on track for round one of the new season.
Alex Johnson: Forced to undergo a second knee reconstruction late last year, Johnson is making slow but steady progress, taking part in some skill work at training over the past week.
Jeremy Laidler: Picked up from Carlton during the trade period, Laidler is settling in really well and showing good signs during pre-season training.
Jordan Lockyer: Returned from the off-season in excellent shape and is giving himself every chance of cracking a senior game heading into his third year on the list.
Nick Malceski: The 29-year-old seems in ripping nick and has been one of the club's best performers throughout the pre-season so far.
Dane Rampe: The club's reigning rookie of the year has picked up where he left off last season, demonstrating excellent fitness and appearing on track for a long career in the backline.
Ted Richards: Having ticked over 200 career games last season, the popular defender is clearly still the backline marshall as evidenced by his pre-season to date.
Rhyce Shaw: The veteran is absolutely flying since LARS knee surgery late last season and is well on track to take his place in the backline in round one.
Nick Smith: The vital small defender played all but one match last season to sit on 98 for his career. - James Dampney
 


After a torrid struggle with a knee injury, Alex Johnson is set to return this year. Picture: AFL Media

WEST COAST
Tom Barrass: Pick No. 43 in last year's draft has been placed on the long-term injury list after requiring surgery to repair a torn hip joint. He will not return to training until mid-April.
Jamie Bennell: Played three WAFL reserves and 12 WAFL senior matches in 2013 in his first year back from a knee reconstruction. Was elevated to the senior list and has trained impressively through the pre-season and should play in the NAB Challenge.
Mitch Brown: Played 19 matches in 2013, his equal best in seven seasons in the AFL. Has spent some time playing as a forward in the game simulation sessions during the pre-season.
Jacob Brennan: Played 10 matches in 2013 after 16 in 2012. Recovering from a bone stress injury in his shin that has stalled his pre-season. Still yet to re-join the main group.
Sam Butler: Has played 108 matches in 10 seasons including 15 last year. He has been carefully managed in the pre-season. His body must hold up this year.
Adam Carter: Played five games late in his debut season. Very exciting prospect who has been impressive throughout the pre-season. Has the skill set required to fit into Adam Simpson's new game plan playing as a small, running defender.
Brant Colledge: Pick No. 45 in the 2012 NAB AFL Draft. He was sidelined for most of 2013 due to ankle surgery. He is capable of playing at both ends, and performed well in recent match practice. Will be in contention for the NAB Challenge and round one.
Darren Glass: The skipper is still a vital cog in the Eagles defence. Looks extremely fit and will be very important to help sell the new coach's game-plan to his team.
Shannon Hurn: Looks sharp after missing the last 10 matches last year due to an ankle injury. His kicking in the pre-season has stood out. Key figure for the Eagles in 2014.
Eric Mackenzie: Took his game to another level in 2013 and was unlucky not to win the best and fairest and be named All Australian. Looks in great shape after a terrific pre-season.
Jeremy McGovern: Returned to the pre-season following hip surgery in terrible shape and was sent away to get up to speed. Has responded sensationally and will be a contender for the NAB Challenge matches. 
Rowen Powell: Pick No. 22 in the rookie draft. Has trained away from the main group in his first pre-season and won't be in contention for senior selection for a while.
Will Schofield: Injury-interrupted 2013, missing six matches mid-year due to a fractured finger. Suffered a hamstring strain in January and will be touch and go for the NAB Challenge.
Ashley Smith: Played 12 matches in 2013 including the last eight. Admitted late last year he needed to perform better. Should get his chance under the new coach in the NAB Challenge.
Beau Waters: Waters has had a horror pre-season due to complications with his shoulder surgery. Has stood down as vice-captain. Still weighing up further surgery or playing through pain. He is a long way off playing at present.
Blayne Wilson: Debuted against St Kilda in round 11 and played seven matches in 2013. The 21-year-old will benefit from Adam Simpson's game style. His skills and decision-making will give him opportunities in the NAB Challenge and see him push for round one
Elliot Yeo: Played 19 matches for the Brisbane Lions last year and looks ready-made to slot straight into half-back at West Coast. Has been very impressive in pre-season practice matches and looks likely to play a large part this season. - Alex Malcolm
 
WESTERN BULLDOGS
Mark Austin: It's looming as a make or break year for the former Blue and third year rookie. Stuck behind Roughead, Talia and Morris in the key defensive pecking order.
Matt Fuller: The mature age recruit will have plenty of competition for a gig as a running defender. The 23-year-old is armed with a big body and is an exceptional kick on both feet.
Brett Goodes: The 29-year-old will be looking to build on a solid debut campaign and ward off several young pups vying for a spot as a running defender.
Christian Howard: The first round pick has struggled with form and injuries in his four seasons at the Whitten Oval. Inking just a one-year deal late last season, he'll need to make the most of his opportunities.
Jason Johannisen: Impressed with his run and carry, decision making and sure foot skills in 2013 before injury ended his breakout season early. Looks a 10-year player for the Dogs.
Lin Jong: The project player and third year rookie has been plagued by injuries since his debut in 2012. Courageous as they come but is working on his skills and game awareness in the VFL.
Dale Morris: The wily veteran will once again be a vital component of the Dogs backline with his ability to lockdown on a tall or a small.  An on field coach to Roughead and Talia.  
Daniel Pearce: 2014 could be the year the tough running defender makes his mark after a flawless pre-season. Coach Brendan McCartney and club legend Chris Grant are big fans of the 21-year-old.
Jack Redpath: The third year rookie was recruited as a tall forward who liked to throw his weight around but has now been recast as key defender.  Needs to have a big year to be retained.
Jordan Roughead: Won many admirers for his work on Jonathan Brown and his cousin Jarryd Roughead last year. Developing nicely under the tutelage of specialist coach and Geelong great Matthew Scarlett.
Michael Talia: A key defender in the mold of Morris, the 20-year-old is effective in nullifying his opponent while giving plenty of run. Not the best kick but knows his limitations.
Easton Wood: The athletic medium defender has succumbed to hamstring issues in recent seasons but the Bulldogs like his versatility. Needs an injury-free run to establish himself. 
Tom Young: The former Magpie impressed as a medium defender who could negate an opponent while giving plenty of drive. Needs to work on his kicking to cement a spot in best 22. - Ryan Davidson