Radamel Falcao's future at Manchester United is uncertain admits his agent Jorge Mendes and the striker could move to Serie A in the summer.

Juventus reportedly has interest in signing Falcao.

Falcao wasn't in Louis van Gaal's 18-man matchday squad for Sunday's loss to Southampton.

Answering a specific question on whether the striker will ever be seen in Serie A, Mendes replied: "I don't know. He is a fantastic player, and I think it's very difficult for Manchester United fans -- they have an absolutely brilliant player, one of the very best in the world, who would without any doubt play 90 minutes of the match, every time, with any other club.

"The truth is, right now we don't know what will happen. What we do know is that he will play in one of the very best clubs in the world next season, whether that is Manchester United or not.

"I am 100 percent sure of that. But you know how football works -- we need to wait a little. We'll see what happens."