Collingwood recalled Tristan Walker to replace Anthony Rocca for Saturday's AFL grand final against Brisbane at the MCG.

The Lions also made just one change, with veteran defender Marcus Ashcroft returning from his knee injury at the expense of Tim Notting.

Rocca's appeal against his two-match ban for striking Port Adelaide ruckman Brendon Lade failed, creating Walker's opportunity.

The 19-year-old was in contention with Steve McKee and Jarrod Molloy for a recall once Rocca was unavailable.

Molloy and McKee were named as emergencies, along with midfielder Andrew Williams.

Ashcroft hurt his knee in the semi-final win over Adelaide a fortnight ago, but is expected to play.

"Fab Four" midfielder Nigel Lappin is no certainty to play because of the rib injury he suffered last Saturday night, when team-mate Shaun Hart cannoned into him during the preliminary final win over Sydney.

Notting, hard-man Chris Scott and Aaron Shattock are the Lions' emergencies.

Scott is in Brisbane's best 22, but has not played since aggravating a groin injury in the qualifying final loss to Collingwood.

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