Geelong vice-captain Joel Selwood says West Coast's defensive press has been effective in Perth but the Eagles face a fresh challenge at the MCG on Saturday.

West Coast are yet to win at the MCG in 2011, losing to Collingwood by 52 points in round 10 and again by 20 points in a strong performance against the minor premiers in the qualifying final two weeks ago.

The Eagles were able to hold off the fast-finishing Carlton by three points in last week's semi-final in Perth and John Worsfold's men were even more impressive at home in round 16 when they upset Geelong by eight points.

But Selwood, who missed the round-16 clash through suspension, says the Cats may still have an ace up their sleeve.

"They put on a really good press and they've done it to everyone who has played over there (at Patersons Stadium)," Selwood said on Wednesday.

"They know the ground really well over there.

"It might be a bit of a change. They don't get on the MCG too much.

"We've got to use that a bit to our advantage. I guess we can take that into account.

"But it's a prelim final, it's not just an ordinary game.

"We've got to make sure we're right on top of the game."

Selwood says West Coast's two hard-fought finals in the past two weeks could also be to Geelong's advantage.

"We had to play that second week last year and we thought we were right to go for the prelim," Selwood said.

"It probably was a little bit harder than what we thought," he added of Collingwood's 41-point win in the 2010 preliminary final.

"But then again it's a new year and there's better sports science out these days to make sure the body is recovered quicker.

"They're coming to play and we have to make sure we do the right thing."

Meanwhile, Selwood says he has every confidence onballer Joel Corey will be fit to play on Saturday.

Two-time club champion Corey hasn't played since August 14 because of a groin injury.

"He is ready to go," Selwood said.

"Joel's a player a bit like (West Coast's) Daniel Kerr that you know what you're going to get from him when he comes out to play.

"He's excited. He has to get through (training) today and pull up well tomorrow but we're very confident that he will."

Corey trained on Wednesday in a closed session at Skilled Stadium and is a likely replacement for injured forward Daniel Menzel.

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