Port Adelaide will also be closely monitoring several key players ahead of its match with North on Saturday night at Etihad. The Power recorded their second consecutive loss on the weekend, going down to Sydney at Adelaide Oval in a bruising encounter.

Robbie Gray copped a hit to the shin, Matthew Broadbent received a knock to the hip and young small defender Jarman Impey injured his hamstring.

"Broady had a bruised hip, Robbie had (a) cork to the shin, but they'll be fine for next week - they both finished the game pretty well,” High Performance Manager Darren Burgess told the Power's website.

Midfielder Jared Polec was put on crutches as a precaution following a foot sprain in the 48-point loss while 19-year-old small defender Jarman Impey has already been ruled out out with a leg injury.

"It looks like he's (Impey) done a hammy, he's the only one to come out so far, so we'll scan it, review it, and see where he's at from there," Burgess said.

Matthew Lobbe will need to be reviewed this week before being given the green light to return from the quad injury that has kept him out of the opening two rounds.

After two shock defeats, the pressure in on Ken Hinkley and his players with several changes for the clash with the Roos forecast.

“We do have some good form underneath (in the SANFL); a number of players have put their hand up and we are going to need a couple of them,” Hinkley said.

The Power is feeling the weight of expectation building.

"It probably creates a little bit more pressure,” Tom Jonas said.

"It's a good lesson though, to play two really good sides early on. It shows you where your game is at and where you need to get it to.

"We can wait until round 22 to learn those lessons or we can learn them right now early in the year and deal with it and improve from that."

Jonas said Port’s leadership group has sat down for lengthy talks in an effort to kick-start the side’s season.

"We review everything," he said.

"We played a really good side on the weekend so there is a heap to learn from them.

"We worked really hard over the pre-season. We know we have got the base to do it and everything in place to play good footy, it's just we're not putting it all together.

"We have got very high standards and Port Adelaide footy is a very hard working brand of footy. We just feel like we have a little way to go in getting everything to gel."