Goalkeeper Sean O'Neill will not play for the Antrim GAA team in Saturday's All-Ireland Football qualifier against Carlow at Casement Park.
O'Neill confirmed on Wednesday that he was sticking to his original decision to concentrate on his duties with Irish League club Crusaders.
Crusaders will be in Europa League action next week - most likely against Premier League club Fulham.
St Brigid's keeper Willie McSorley has been added to the Antrim squad.
There were reports earlier this week suggesting that O'Neill was set to line out for Antrim against Carlow.
However, O'Neill has told manager Liam Bradley that he will not be available for the Casement Park clash.