It's after Blair Kinghorn sustained an injury in the game against the Brumbies
Naas' Jamie Osborne has been called in to the British and Irish Lions squad.
He was due to be involved with the Irish squad against Portugal this weekend, but Andy Farrell has brought him in as additional cover after Blair Kinghorn picked up an injury yesterday.
The Lions play against an Australian and New Zealand Invitational side on Saturday, with Eadestown's Tadhg Beirne named as captain.
Beirne partners James Ryan in an all-Irish second-row, Hugo Keenan is at full-back with Mack Hansen on the wing.

Alcaraz Withdraws From Wimbledon Due To Wrist Injury
Graeme McDowell To Make His First Major Appearance In Six Years Next Month
Three Of The Irish Provinces To Kick Off The New Season At Home In September
Tuesday Morning Sports Update
All Ireland Football Championship Opening Round Fixtures Confirmed
Tommy O'Brien Among Injury Doubts For Leinster's Champion Cup Final On Saturday
Monday Morning Sports Update
Sunday Evening Sports Update