Trouble flares at half-time as fracas breaks out between Tyrone and Donegal
There is no love lost between Ulster rivals Donegal and Tyrone, but that competitive relationship spilled over at the end of the first half-in Ballybofey.
In terrible conditions, Rory Gallagher's side began and finished the half strongly to hold a two-point lead over Mickey Harte's underdogs.
At one stage they were trailing by five points, but a well-taken goal from Darren McCurry and some incisive attacking moves saw Harte's side edge ahead.
However Martin McElhinney found the net as the half drew to a close before Colm McFadden tacked on another point to give a two-point cushion.
However with tensions simmering beneath the surface, players and management on both sides squared off pitch side as they left the pitch.
Mickey Harte could be seen attempting to pull his players away, while trouble appeared to begin as Eamon McGee and Sean Cavanagh were jostling and exchanging verbals after a hard-fought battle on the pitch for the opening 35 minutes.
Eventually order was restored and both sides made their way to the dressing room.