Munster duo Conor Murray and Simon Zebo are struggling to be fit for Saturday's Pro12 decider against Glasgow Warriors at Kingspan Stadium in Belfast.
Scrum-half Murray (knee) and wing Zebo (concussion) sustained their injuries in the semi-final victory over the Ospreys at the weekend.
Murray was forced off in the first half and Munster are awaiting results of a scan on the injury.
Fellow Irish international Zebo is following return-to-play protocols.
Murray will meet a specialist on Tuesday with Munster fearing he may have sustained ligament damage in Saturday's game at Thomond Park.
Munster captain Peter O'Mahony, Paddy Butler, Eusebio Guinazu and Andrew Smith missed Tuesday's training session as they recovered from knocks picked up in the Ospreys encounter.
However, they are all expected to be fit and available for the showdown with the Scots.