GAA president Larry McCarthy says a lack of "expertise" was the reason the association decided against increasing the capacity for the upcoming All-Ireland football final.
At the moment 41,150 supporters will be allowed into the stadium to watch the game between Tyrone and Mayo, with no requirement for a vaccine passport for entry.
From 6 September the government is allowing attendances of 75% venue capacity at outdoor events for those who are fully jabbed, and this had given hope to supporters of both counties that just over 61,000 people might be let through the gates on 11 September.
Croke Park yesterday confirmed that there will be an additional 1,150 tickets only for the clash on Saturday week at the Jones' Road venue.