A pre-match parade behind St Michael's Scout Band turned into a brawl today as Armagh took on Cavan.
Armagh won the match but not before a melee broke out as the two teams ran over to march behind the band at the grounds in Armagh.
And players and county boards on both sides could face GAA sanctions when referee Marty Duffy, who took no action at the time, files his report with Croke Park authorities.
A GAA investigation is expected.
When peace was restored, Armagh beat Cavan 1-12 to 9 points.