Aston Villa starlet Shane Lowry has pledged his international allegiance to Australia despite having represented the Republic of Ireland at under-19 and under-21 level.
Lowry, who was born in Perth to Irish parents, advised the Football Association of Ireland of his decision to turn his back on his adopted nation this week.
"The decision is entirely up to the player," said an FAI spokesman.
"He is eligible for both countries and it's perfectly within the rules.
"Players have gone the other way in the past and declared for us.
"So it's a case that we've benefited from it in the past but this time unfortunately the player has decided to go elsewhere.
"It's his decision and we respect it."
Lowry made his sole appearance for the Republic of Ireland under-21 side in the 1-1 draw against Germany in February.