McKenna Cup finalists Tyrone and Donegal have named strong teams ahead of Sunday's Ulster showdown.
All-Ireland champions Tyrone draft in Ger Cavlan and Enda McGinley to replace Stephen O'Neill (suspension) and Colm McCullagh (injury).
Meanwhile, opponents Donegal return young star Stephen McDermott to midfield with veteran 'keeper Tony Blake between the sticks.
Donegal: T Blake; N McGinley, R Sweeney, N McCready; S Carr, B Monaghan, K Cassidy; J Gildea, S McDermott; C Toye, M Hegarty, P McGonagle; B Roper, C McFadden, B Devenney.
Tyrone: J Devine; R McMenamin, C McAnallen, C Gourley; C Gormley, G Devlin, P Jordan; K Hughes, S Cavanagh; B Dooher, B McGuigan, G Cavlan; M Harte, O Mulligan, E McGinley.