Tadj Forllong of the British and Irish black team was excluded from the opening match of Ireland in the Six Nations Championship against England on Saturday due to the injury.
Forlong, 32, suffered a frequent injury in the leg in the Irish training camp in Portugal on Saturday and returned to Dublin for further evaluation.
Jacques Unger, the player of Konkcht, was called to the squad of the six nations holders as a substitute.
The player who has experienced all the four international matches he played in November was absent with Ireland due to a problem in the knee strings, and he returned to Lester only in his victory over La Rosheel three weeks ago before he was absent from the last European boycott match against Bath.
The absence of Forlong means that it is likely that Vinley Bilham is likely to start against England at Aviva Stadium, but Ireland's third option at the center, Tom Otul, is arrested in the first two games in the championship.
Hooker Dan Shihan and James Louis joined the Ireland squad on Sunday after returning from injury to play in Linistster's victory in the United Rugby Championship over Stores on Saturday.
Shehan was appearing for the first time this season after suffering a knee injury in the South African summer tour of Ireland, while Louis has been excluded since he was injured in a leg in the last international match of Ireland in November against Australia.
Jack Boyle, Lindster's duo, also joined the team on Sunday, and Kaagal Blid is also scheduled to arrive from Contest to Portugal on Monday.
