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It affects Edenderry, Tullamore, Clonbullogue and Raheen.
Offaly GAA have confirmed venues and times for two county finals taking place on Saturday.
They won't be held in O'Connor Park.
First up in Daingean, Edenderry and Tullamore take the field for the Junior Football Final at 1pm.
Two hours later in Gracefield, Clonbullogue and Raheen will contest the Intermediate Football decider from 3pm.
Fixtures:
Junior Football Final
Edenderry v Tullamore - Daingean - 1pm
Intermediate Football Final
Clonbullogue v Raheen - Gracefield - 3pm