S-S-E Airtricity League champions elect Cork City have suffered their third loss in six games.
They were beaten 2-1 by Limerick at Market's Field.
Cork can seal the title if they beat Dundalk at Turner's Cross on Monday night.
Galway United are within touching distance of preserving their Premier Division status for another season after this win over Sligo Rovers at Eamonn Deacy Park.
Sligo native and former Sligo Rovers player Kevin Devaney scored a stunning goal late on and Gavin Holohan added a third as they claimed all three points.