COLLINGWOOD ruckman Josh Fraser remains optimistic of facing St Kilda on Friday night, despite giving himself a less than 50 per cent chance of overcoming the knee problem he sustained in Saturday's Hall of Fame Tribute match.

Fraser, 26, clashed knees with West Coast ruckman Dean Cox at a centre-bounce midway through the last quarter, and injured his posterior cruciate ligament.

Such an injury can keep a player out for up to three months, depending on the degree of the ligament's tear. Essendon's Scott Lucas split his in the opening week, and is expected to return to action in round 10.

But Fraser, who met club doctors on Monday, is set for a much shorter lay-off with the Magpies' vice-captain refusing to rule himself out from facing the Saints at Telstra Dome on Friday night.

"It's pretty positive," he said.

"I'm still a chance to play this week. We've got a couple of training sessions to go before Friday so I'll give myself a chance there.

"But, at the moment, it's not looking long-term, which has been reported. I'll give myself every chance this week."

Fraser admitted he thought the worst on Saturday night after he limped from the field following the collision.

But, after the knee "responded really well" in the 24 hours after the match, he became more optimistic.

Now, the only thing set to keep Fraser from playing on Friday night will be the short break between the representative game and Collingwood's round eight fixture.

"I'm probably under 50 per cent because the injury happened on Saturday night, and I guess it's still yet to fully settle," he said.

"But the way it has responded, I'm pretty confident I'll be able to have a run later in the week and it might go back to the match committee for them to decide whether I can play.

"Again, it's not a 10-week injury. If I miss this week, it will probably be monitored for the following week."

The Pies' ruckman said he had no regrets from participating in Saturday nights' exhibition match, which also saw Eagles' speedster Daniel Kerr suffer a sprained ankle.

"It was a wonderful experience," he said.

"It was a terrific experience and I've said to a few boys already it would be a shame if they went through their careers and didn't get the chance to pull on the 'Big V'.

"I've got no regrets at all. It's an injury that could have happened at training; it could have happened anywhere.

"It was a great thrill to be able to play for Victoria and I've got no regrets whatsoever."