Martin Carney feels Mayo can upset the Dubs

2 September 2012; Paul Flynn, Dublin, in action against Lee Keegan, Mayo. GAA Football All-Ireland Senior Championship Semi-Final, Dublin v Mayo, Croke Park, Dublin. Picture credit: David Maher / SPORTSFILE

Mayo and Dublin will clash in the second semi final of All Ireland Senior Football Championship on Sunday at Croke Park.

The prize for the winners is Kerry on the third Sunday in September.

Former Donegal and Mayo player Martin Carney feels Mayo can upset the Dubs and make it back to an All Ireland Final.