Geelong and Port Adelaide have been warned the AFL tribunal will not tolerate any acts of grand final violence.

Tribunal chairman David Jones has told both clubs extra penalties will apply for players who are found guilty of transgressing in the biggest game of the year.

In a statement, league football operations manager Adrian Anderson said: "The grand final was the AFL's showpiece match of the year and Mr Jones had instructed Port Adelaide and Geelong to remind their players of their responsibilities."

The most recent example of grand final violence came in 2004, when retiring Brisbane Lions forward Alastair Lynch sensationally lashed out at Power defender Darryl Wakelin with an unrelenting flurry of punches.

To cap off an ugly day - Lynch failed to gain a possession and the Lions lost to Port Adelaide - the former spearhead received a whopping 10-game suspension, but couldn't serve his sentence as the grand final was his last match before retiring.

From the same game, Lynch's teammate Jonathan Brown also received a five-game ban for striking the Power's Josh Carr.

Collingwood's Brodie Holland also felt the tribunal's wrath after last year's elimination final.

Holland's start to the 2007 season was delayed by six matches after he was found guilty of rough conduct for a heavy bump on the Western Bulldogs' Brett Montgomery.

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