RETIRING Collingwood utility Leigh Brown says he hasn't allowed himself time to reflect ahead of his last game in Saturday's Grand Final against Geelong.

Earlier this month, Brown announced his remarkable football journey would come to an end at the end of the season.

The ex-Fremantle recruit's career appeared to be over in 2008 after he was delisted by his second club North Melbourne, where he played 118 games.

He was offered a lifeline by the Magpies and emerged as a vital cog in the team last season, playing 19 matches and fashioning the undersized - but versatile - second-ruck role.

He was a member of Collingwood's premiership team, and has an opportunity to write another chapter in his Cinderella story at the MCG on Saturday.

"I guess it would be [a fairytale finish] to win another flag with the boys tomorrow," Brown said at the Grand Final Parade on Friday.

"I know it's my last game, but I haven't thought about it at all.

"I'm just looking forward to the day, playing my role and having a good game.

"I don't know how I'll feel afterwards when it's all over.

"Hopefully, we’ve had a win, I've got another medal and I'm extremely happy."

Brown spent considerable time in the ruck in Collingwood's preliminary final win over Hawthorn last weekend after Darren Jolly injured his groin.

Jolly, 29, has been named in the team to take on the Cats, and will carry the majority of the ruck duties up against in-form big man Brad Ottens.

Coach Mick Malthouse resisted the urge to bring in a second, bonafide ruckman as insurance for Jolly, confirming emergency Cameron Wood would watch the game from the stands.

"'Jolls' rucked against Woody and against Anthony Rocca at training … he can't do any more," Malthouse said.

"He trained again this morning as he would in [any] preparation.

"If we had doubts he wouldn't play. If we had a minor doubt we would have taken [another] ruckman into the game, but we don't see the need."

The Cats have named an unchanged team, with injured forward Steve Johnson (knee) being given until Saturday morning to prove his fitness.

The forecast for Melbourne on Saturday is for rain, but coach Chris Scott indicated the weather was unlikely to influence his final selection.

Geelong has named 198cm ruckman Trent West as support for Ottens, but Brown denied his team's smaller ruck combination would be an advantage in the wintry weather.

"Both teams play pretty well in the wet, and Ottens and West both play a bit up forward as well," Brown said.

"I think it'll be a pretty even contest regardless of the weather."