From the BBC:
'Darron Gibson's international future could become clearer on Monday. The 19-year-old Manchester United player is currently at the centre of a dispute between the Republic of Ireland and Northern Ireland.
'The Derryman played for NI at underage level before switching to the Republic and he earned a full cap in last month's Euro 2008 qualifer in Slovakia. The Irish FA and Football Association of Ireland will make submissions to Fifa on the issue in Zurich on Monday.
'The IFA says that Fifa rules make clear that Gibson should not be allowed to play for the Republic because niether the player, nor his parents or his grandparents were born south of the border.
'However, the FAI insists that the player is qualified to play for the Republic under the terms of the Good Friday Agreement which states that anybody born in Northern Ireland is entitled to Irish citizenship.
'Gibson earned his first Republic cap in the friendly win over Denmark in August.'