Mayo Gardai are warning they will take action against motorists who park dangerously or irresponsibly at Saturday evening's National Football League game in Castlebar between Mayo and Dublin.
A large turnout - possibly up to 20,000 - is expected for the match at Elvery's MacHale Park, which throws in at 7pm, with the Mayo ladies game fixed for 5pm.
However, there are health and safety concerns due to GAA fans parking on the hard shoulder of the N5 approaching Castlebar.
Superintendent Kevin Gately says parking along the N5 is not recommended, and he's asking GAA fans to be safety conscious and follow the instructions of the Gardai and stewards on Saturday evening.
Gardai are advising there's ample free car parking within the environs of Castlebar, including at the town's millitary barracks.
Mayo fans are urged to travel to Castlebar early to allow time to park and walk to MacHale Park.
Mayo GAA PRO Paul Cunnane is also advising people to buy their tickets in advance of Saturday's double-header, and to arrive in good time.