Conor Gormley looks set to miss Tyrone's All-Ireland semi-final against Mayo next week after the GAA's disciplinary arm charged him with striking Monaghan's Dessie Mone as the players made their way off the field at half-time in their quarter-final.
The same flashpoint will already keep Martin Penrose out of the Mayo match -- he was red-carded just before the start of the second half. But the potential loss of Gormley really compounds Tyrone's problems.
The Central Competitions Control Committee (CCCC) reviewed the incident and contacted match referee Cormac Reilly to ascertain whether or not he had dealt with the incident.
It is understood that neither Reilly nor his officials saw the incident and that opened up the prospect of laying a charge against Gormley, although Tyrone say they have yet to be notified.
Gormley appeared to catch Mone with his hand, but Tyrone are likely to seek a hearing on behalf of the player in the coming days.
Meanwhile, the head of referees in Meath, former inter-county goalkeeper Donal Smyth, has warned that abuse of referees is on the rise in the county once again.
Smyth made his comments to a county board meeting on Monday night, when a delegate claimed that a referee has been getting abusive calls to his house phone in recent weeks.