Doug Howlett will have a scan and see a specialist early this week to determine the exact nature of the injury he sustained against Ospreys on Saturday.
Initial examination suggest he's damaged his Achilles tendon and he has definitely been ruled out of Munster's upcoming Heineken Cup matches against Scarlets.
Munster have announced that Ronan O'Gara has retired from playing professional rugby. It's understood that the 36 year old will take up a coaching role abroad at the start of the 2013/14 season.
The Munster squad are in to the final weeks of their season with training continuing as players wait on news of possible Ireland and Emerging Ireland tour inclusions.