L'Equipe says United have had scouts posted to watch EVERY game the Belgium international has featured for PSG this season.
Yesterday, Meunier admitted a move to England this summer was in his thoughts.
He revealed: "Of interest in particular from England? Yes, but not only there. It comes from everywhere. Even from China or the Middle East.
"A preference for the Premier League? I have never hidden it."
Meunier also said: "Will I extend or leave? Good question. With the management, the discussions hang out a bit. I can understand, given the deadlines of the team, that my personal case was put in the freezer, but since nothing has moved so far, the message seems clear enough.
"It would annoy me a little that it ends like that, without having had the opportunity to finish in style."