Pogba has not featured for United since sustaining the injury in their 3-3 draw with Everton on February 6.
He seemingly faces a race against time to be fit for the derby with Manchester City on March 6, with manager Ole Gunnar Solskjaer ruling him out of Premier League games against Newcastle United and Chelsea as well as the two legs of the Europa League last-32 tie versus Real Sociedad.
Speaking ahead of the first leg of that tie, Solskjaer told a media conference: "Paul, his recovery, he's starting the treatments, it'll still be a few weeks.
"He won't be playing in February that's for sure. Still a few weeks until we see Paul, definitely.