Atletico Madrid striker Antoine Griezmann has admitted to being a keen onlooker of Manchester United this season this season, partly due to this growing friendship with midfielder Paul Pogba.
Pogba, 23, completed a world-record £89m switch to Old Trafford earlier this summer, and recent reports have suggested that Griezmann looks set to follow suit for next season's campaign.
Manchester Evening News have reported that United manager Jose Mourinho is ready to spend big and land the talented forward next summer.
But Griezmann, who recently parted ways with his agent, is keeping his cards close to his chest, refusing to rule out a potential switch while confirming that he is 'very happy' in Madrid.
A stumbling block in a potential move to Old Trafford is Atletico's transfer ban, which stands until 2018.
However, with Diego Simeone's future looking uncertain at the Vincente Calderon with his contract expiring in 2018, Griezmann may seek a way out with United being the prime candidates.
The 25-year-old told L'Equipe that he has been a keen observer of Man Utd this season, mainly to watch his good friend and international teammate Paul Pogba.
“We get on very well. It is true that Euros has brought us closer together still. Paul is a really nice guy. He is it!" he said to L'Equipe.
“We send messages, Snapchats. He’s really a good friend…When he plays with his club, I try to look at it to see if he had a good game or not.”
Both players are on international duty preparing to face Petar Hubchev's Bulgaria and Les Bleus will be hoping for their first win of the qualifying stages after falling to a disappointing 0-0 draw with Belarus in the opener.