Crossmaglen's Stephen Kernan will miss the All-Ireland Club final after his final appeal against a ban was rejected by the Disputes Resolution Authority.
Kernan was red-carded in the semi-final after appearing to retaliate following a foul by a Dr Crokes player.
An initial appeal to the Central Hearing Committee failed, despite Cross presenting video evidence.
Kernan also failed in an appeal to the Central Appeals Committee, and will play no part in the decider.
The club captain's defence was thought to be based on the assertion that he had pushed rather than struck the Crokes player.
Last week's appeal to the Central Hearings Committee lasted almost three hours but having considered the evidence presented, Croke Park officials decided the red card should stand.