O'Connell's last involvement with Munster was in the Heineken Cup round 2 game against Edinburgh at Thomond Park Stadium in mid October and he was subsequently involved training with the Irish squad during the November internationals.

A statement issued today said: 'Paul O'Connell is undergoing treatment for a lower back complaint. His treatment is progressing satisfactorily. He will see a specialist for further review in the New Year'.