With Conor McManus through on goal against Tyrone Sean Cavanagh hauled down the Monaghan forward to prevent him scoring a goal.
Cavanagh received a yellow card for the foul.
The incident caused Joe Brolly to erupt into an epic rant on RTÉ's coverage of the game. He also let his thoughts on the foul be known on Twitter.
What Cavanagh has just done illustrates how rotten the game has become
— Joe Brolly (@JoeBrolly1993) August 3, 2013