Donegal edged out Tyrone in a breathtaking extra-time thriller at Celtic Park to go through to an Ulster SFC final meeting with Armagh on 12 May.

An epic tie in Derry city enthralled a crowd of 14,714, with Jim McGuinness once again working the oracle as his side came late to edge out their great rivals.

Tyrone held the edge for lengthy spells, but the sides were level on nine occasions, before Tir Chonaill produced a strong finish.