Gardai are advising people to only travel to today's All-Ireland final if they have a valid ticket.
Garda Superintendent Martin Mooney, says a cordon will be in place around Croke Park where tickets will be checked:
Excitement is building ahead of the All-Ireland football final between Tyrone and Mayo at Croke Park this evening.
It doesn't get underway until 5 o clock, but fans from both counties have already arrived in Dublin ahead of the match.
Mayo will be hoping to win their first All-Ireland title in 70 years.
These people in Ballina have been gearing up for the match all week:
Tyrone haven't lifted Sam Maguire since 2008, and are also looking for their 4th win.
John McGirr, owner of Sally's Bar in Omagh, says it's a fantastic feeling being in the final: