Prop Dave Kilcoyne has joined Munster's injury list ahead of the Guinness Pro14 derby clash with Connacht at Thomond Park this Saturday night.
Kilcoyne suffered an ankle injury in the Heineken Champions Cup semi-final defeat to Saracens at the weekend. He'll be assessed as the week progresses.
Johann van Graan is already likely to be without Joey Carbery (hamstring) and Keith Earls (thigh), with James Cronin (leg) out since last September and Tommy O’Donnell still recovering from a shoulder problem.
In their final Pro14 game of the regular season, Munster have to beat the Westerners to keep alive their hopes of topping Conference A - and thus earning a bye to the play-off semi-finals.
They also require Edinburgh to turn over Glasgow Warriors.
Connacht booked their place in the play-offs with a thrilling victory over Cardiff Blues at the Sportsground. They are guaranteed to finish third in Conference A regardless of Saturday's result.