Manchester United's trip to Crystal Palace on Thursday night. Shaw suffered a twisted ankle in the 2-2 draw with Southampton on Monday night and his replacement Williams was forced off with a gash to his head in added time.
Shaw, 25, has started in all 18 matches of United's unbeaten run but the potential absence of the England international and his understudy Williams could force Solskjaer to recall Diogo Dalot at Selhurst Park on Thursday night.
United face Chelsea in the FA Cup semi-final on at Wembley on Sunday and Solskjaer is almost certain to make changes after fielding the same XI in five Premier League matches running. "Luke has got a swollen ankle," Solskjaer said. "I'll give him as much time as possible to recover.
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