Griezmann has been strongly linked with both clubs throughout the season but has stressed that he is happy at Atletico Madrid.

Adviser Eric Olhats, who emphasised that his client has a €100 million release clause in his contract, also poured cold water on speculation that Paris Saint-Germain could move for him.

Griezmann scored his 100th La Liga goal as Atletico beat Espanyol 1-0 on Saturday, and Olhats said: "There is an existing clause of €100m, which is unavoidable.

Antoine Griezmann celebrates his 100th La Liga goal.

"We're thinking right now about the most suitable offer. Real Madrid and other clubs are part of this thinking process.

"Antoine doesn't want to leave the club at any cost. That is false."

Olhats said United "told us about their project" and had been the "first and the most solid" in expressing an interest in signing Griezmann.

But he said there had been no contact with PSG, adding: "Last year, there was a real interest, but not this year. He might not be in their plans any more."

An irritated Griezmann walked away from a postmatch interview with beIN SPORTS on Saturday when asked about his future.

He said: "That's it I've already spoken. I do not want to talk any more."