Former Dublin footballer Barry Cahill has said Saturday's All-Ireland semi-final replay in Limerick will be a novel experience for the players of Mayo and Kerry.
GAA officials are expecting Saturday's replay to sell-out at the Gaelic Grounds.
The venue holds close to 45,000.
The replay has been moved from Croke Park to accommodate the American Colleges Football Game on Satuday.
Around 20,000 supporters will travel from overseas for that game, the majority from North America.
Cahill attended a Croke Park Classic launch yesterday and said he feels the clash is unfortunate, but a unique one for those involved.
He said: "It's a tricky situation. I think it's the first All-Ireland Football Championship semi-final replay in six years I think.
"There was a risk attached to having a game at Croke Park on Saturday obviously. As the week goes on, people will focus on semi-final itself in Limerick and look forward to it again. From the players' perspective, they'll be happy to play it anywhere I'm sure.
"But yeah it'll be a novel experience for players going down to the Gaelic Grounds."