Manchester United are monitoring closely Porto striker Andre Silva.

Calciomercato.com says United are reportedly keen to add him to their attacking ranks in the summer - particularly if they can't prise Antoine Griezmann from Atletico Madrid.

But the Red Devils will face French interest, with both PSG and Marseille also interested in a player who could cost in excess of £50million.

The Portuguese striker, 21, has bagged 20 goals for Porto this season, and has been earning rave reviews.

The hitman has already earned a regular spot with his national team, where he is being tipped to take over the scoring mantle from ex-United star Cristiano Ronaldo in the long term.