Paul Pogba hobbled off injured in the first half of Manchester United’s Premier League meeting with Liverpool on Tuesday.
World Cup-winning midfielder Pogba was replaced by Jesse Lingard in the 10th minute with United trailing 1-0 at Anfield.
The France international could be seen limping when he attempted to track back as Luis Diaz opened the scoring inside five minutes.
Pogba had retained his place in the starting line-up despite being jeered by fans in the 3-2 win over Norwich City at Old Trafford at the weekend.
He could now be a doubt for crucial fixtures against Arsenal and Chelsea in the next nine days.