Star Fremantle forward Josh Treacy is challenging his $1500 fine for staging in his side's victory against Brisbane.

Treacy's sanction would have been downgraded to a $1000 fine had he accepted it, but he has instead opted to challenge.

He lost a one-on-one marking contest against Brisbane's Harris Andrews in the fourth quarter, going to ground after some contact from the Lions skipper.

It is Treacy's first offence.

His Dockers teammates Matthew Johnson and Shai Bolton have accepted fixed financial sanctions for striking and careless contact with an umpire respectively.

Adelaide's Josh Rachele and Brisbane's Cam Rayner were both charged for staging in Round 11 as the AFL cracks down on the action.

Staging can include, but is not limited to excessive exaggeration of contact in an unsportsmanlike manner. 

Calls for the punishment for staging to be increased has reverberated around the competition for multiple years.

Dockers coach Justin Longmuir, last year, suggested that a $10,000 fee would deter players more so, while Nathan Buckley considered a one-week suspensions for dives would help reduce the amount of incidents.

Treacy has kicked 28 goals in 12 games this year, establishing himself as one of the best key forwards in the competition.

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