Munster have announced that captain Peter O'Mahony will be out of action for the rest of the season after picking up a shoulder injury during last weekend's Heineken Cup quarter-final.
The 24-year-old will undergo surgery after he suffered the problem during Munster's 47-23 victory over Toulouse.
A statement on the club's official website said: "O'Mahony travelled to Dublin late yesterday evening for a review with the specialist, and following the consultation it was confirmed that the Munster captain required surgery on his left shoulder."
O'Mahony was part of Ireland's Six Nations-winning campaign.