According to manager Ole Gunnar Solskjaer, the France midfielder needs an operation on his ankle.
The 26-year-old only made his comeback last month, as his ankle problem kept him out since late September last year.
Scott McTominay is currently also out injured.
Pogba has played only eight times this season after having surgery to correct another ankle injury.


England dismiss Pakistan for 110 to seize control of Lord's test
Raphinha, Fermin score as Barcelona beat Athletic in home opener
Celtic and Rangers to play cup match behind closed doors after pitch invasion
Chelsea and Fulham reach League Cup third round as Welbeck scores on debut
PSG to meet Barca, Man City as Champions League draw throws up marquee ties