Players involved in the tunnel brawl at half-time of the Tyrone v Dublin Allianz Football League Division One match in Omagh on Saturday night look set to escape sanction because of inconclusive evidence.
The GAA's Central Competition Controls Committee has set up an investigation into the incident but identifying those involved clearly and getting any charge against them to stick may not be possible on the evidence available.
Video evidence from mobile phones is not admissible, while the only camera angle from the broadcasters does not make it clear who was involved.
Both county boards can expect heavy fines with a reassertion of match protocols around exiting the field at half-time.
Referee Cormac Reilly did show Tyrone's Padraig Hampsey a black card when the teams returned for the second half for allegedly verbally abusing an opponent as the teams left the field.
Tyrone boss Mickey Harte, after the victory, said: "I wouldn't expect to lose anybody. We were the only ones who lost a man at half-time. Paudie Hampsey got a black card. I think we've served our punishment."
Dublin chief Dessie Farrell admitted: "We came up here to play football and that was needless what happened at half-time."