Paul Pogba could miss Manchester United's next two games against Arsenal and Chelsea, according to interim manager Ralf Rangnick.
Pogba received treatment while Liverpool players celebrated Luis Diaz's fifth-minute opening goal in their 4-0 thrashing of United and Pogba came off on 10 minutes.
The 29-year-old is out of contract on June 30 and could conceivably have played for the club for the last time after more supporters turned against Pogba in the away section at Anfield.