Fiacre Kelleher joined Celtic in December 2012 and initially settled into the U17s squad.
The Irishman has since made a claim for a regular place in the Development Squad, making his first start at home to St Johnstone during the 2014-15 season where he delivered a strong and commanding performance.
This was followed by a number of appearances during the 2015-16 campaign where he has linked up with his countryman and fellow defender, Eoghan O’Connell.
Kelleher is a youth internationalist with the Republic of Ireland and has represented them at U15s and U17s level.
