The Frenchman is out of contract in the summer, and is free to sign for any club outside of England between now and the end of the season.
In the summer, he can sign for any team for free, and Pogba spoke about his future while on international duty this week.
The World Cup winner said he was unsatisfied with his time at United, despite lifting two trophies during the 2016/17 season.
Pogba told Le Figaro: "You have to be honest, the last five seasons have not satisfied me – really not at all.
"This year it is dead, we won't win anything.
"Whether it is with Manchester United or at another club, I want to win trophies."
It is believed that United are resigned to Pogba leaving on a free transfer, as he did back in 2012.