The AFL Match Review Officer has advised Zak Butters has been referred to the AFL Tribunal for an incident during Sunday's game against St Kilda. 

Butters has been charged with using abusive and insulting language towards an umpire. 

The exchange was not picked up on the umpire’s microphone.

The Port Adelaide Football Club will defend in the strongest possible way the allegations made by AFL umpire Nick Foot against Butters.

Port Adelaide believes the words used by Butters were misheard and misconstrued from what was actually said.

Acting club captain Butters is unambiguously adamant on what was said and the club strongly supports him and his position.

Former club captain and Brownlow Medallist Ollie Wines was standing next to Butters and Foot at the time of the exchange and will provide a witness statement in support of Butters.

Port Adelaide is also disappointed that umpire Foot dismissively refused Butters' attempt to seek clarification post-game, as captain of the club.

The Tribunal will sit on Tuesday, April 14 at a time to be confirmed.