Jim Gavin has made two changes to his Dublin side for Saturday's All Ireland football quarter final with Monaghan. Jonny Cooper replaces Jack McCaffrey while in the full-forward line; Eoghan O'Gara who scored 1-1 against Meath is in for Paul Mannion. Monaghan manager Malachy O'Rourke has named an unchanged side for that game. Four time All Irelands winner with Kerry Sean O’Sullivan has been speaking to me about this game and the clash of Armagh and Donegal.