The winners of today's game will advance to face Kildare in the provincial decider, with throw-in at 2pm.
There's also semi-final action in the Connacht U21 Championship this evening.
Sligo go up against defending champions Roscommon at Markievicz Park, while Leitrim are at home to Mayo at Pairc Sean Mac Diarmada.
Both games will throw-in at 5pm.
There's one match today in the Allianz National Hurling League as Monaghan host Warwickshire in their Division 3A clash in Clones from 4pm.
