The Madness of Football, Episode 8: Donegal and Dublin change the game in 2011

Jim McGuinness tore up the rules of engagement in a memorable last-four clash at HQ.

A low-scoring start to the game. Picture: INPHO/James Crombie

A 'game from hell', the match that spawned a raft of imitators or an All-Ireland semi-final that redefined how we think about Gaelic football?

Or was the meeting of Dublin and Donegal in the last four of the 2011 championship all of the above and more?