The Munster back rower will undergo rehabilitation this week, but is not ruled out of selection at this point.
The following players have been added to the extended Ireland squad for the South Africa match, joining the available players from the 22-man squad selected for the Fiji game:
Tommy Bowe (Ospreys)
Darren Cave (Belfast Harlequins/Ulster)
Gavin Duffy (Galwegians/Connacht)
Cian Healy (Clontarf/Leinster)
Kevin McLaughlin (St. Mary's College/Leinster)
Ronan O'Gara (Cork Constitution/Munster)
Devin Toner (Lansdowne/Leinster)
Dan Touhy (Ballymena/Ulster)
David Wallace (Garryowen/Munster)
