Port Adelaide midfielder Kane Cornes will contest a rough conduct charge at the AFL Tribunal on Tuesday night in a bid to play in Saturday’s important match against St Kilda.

Due to his six-year good behaviour record, Cornes was only handed a one-match ban for the level-one charge against Hawthorn’s Sam Mitchell last Saturday.

The 30-year-old Cornes, who became Port’s games record holder earlier this year, is bidding to beat the charge and play against St Kilda.

The eighth-placed Power’s chances of contesting the finals for the first time in six years will improve greatly if they can beat the Saints away at Etihad Stadium.

If found guilty, Cornes will be sidelined for one match and get 68.75 carry-over points.

Geelong star Steve Johnson will miss Sunday’s away clash against Adelaide after pleading to guilty to kneeing Melbourne’s Nathan Jones.

Fremantle skipper Matthew Pavlich will miss three matches for his front-on bump on West Coast defender Mitch Brown.

Sydney utility Ben McGlynn will also miss three games for striking GWS midfielder Tom Scully.

West Coast’s Andrew Embley has been hit with a second suspension of the year, this one a two-match sanction for engaging in rough conduct against Fremantle’s Clancee Pearce.

Hawthorn’s Shaun Burgoyne will also miss two games for engaging in rough conduct against Port Adelaide’s Tom Logan.

But teammate Jordan Lewis is free to play for the Hawks in Launceston on Saturday against the Western Bulldogs after accepting a reprimand and 93.75 carry-over points for striking Port Adelaide’s chad Wingard.

West Coast skipper Darren Glass was fined $900 for making negligent contact with an umpire.