Port Adelaide tall Justin Westhoff is unlikely to be considered for Saturday's AFL "anti-blockbuster" against Melbourne after missing Wednesday's main training session with knee soreness.

Westhoff has had a mixed season in 2008, finding more of the ball than during his breakout 2007 but kicking far fewer goals as part of a spluttering Power attack.

Last week against Collingwood, Westhoff was joined up forward by his spitting image sibling Matthew, but he will now more than likely sit on the sidelines as Port attempt to avert the humiliation of defeat by the league's certified cellar dweller.

He will be joined by fleet-footed defender Michael Pettigrew, who is out for the remainder of the season due to shoulder surgery.

Young Power defender Alipate Carlile, one of a handful of players to enhance their reputations at Alberton in 2008, said a win over the Demons would be important for morale.

"We've got a lot of young blokes in there, a lot of first year players and first game players so to get a win for them would be great and to sing the club song would be really good," Carlile said.

"To get some real positives out of the season these last two games it would be good to win both.

"We haven't really thought about it much, we'll just treat them as even a top eight side, they're going along alright and we just want to see how we go against a team that we think we should beat."

Demons coach Dean Bailey's inside knowledge of Port has been flagged as an area for the Power to be concerned, but Carlile said it worked both ways in the sense that Port know how Bailey operates also.

"Dean knows a fair bit about the insides and everything that works at the club, but we know he has a certain style as well so it works both ways and hopefully the players come out on top on the day," he said.

"We'll go out with the same sort of style we've had all year."

Dean Brogan and Daniel Motlop, late withdrawals against the Magpies last week, trained well on Wednesday afternoon and both appear likely to return to action.

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