That is the view of La Liga expert Guillem Balague.
Jose Mourinho has made the Atletico striker his No1 target for the summer with the Red Devils willing to meet his £86m release clause.
The Spanish outfit insist he is not for sale and Diego Simeone will do all he can to convince him to stay.
Manchester United are keen to bring Antoine Griezmann to Manchester United this summer
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But if someone comes with his buyout clause of €100m, plus the tax involved, they would like to use that money to get Diego Costa and Alexis Sanchez
"Atletico Madrid have got a dream, but it is just that at the moment, a dream – they do not want to sell Antoine Griezmann, they want to keep him,” he told Sky Sports.
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"But if someone comes with his buyout clause of €100m, plus the tax involved, they would like to use that money to get Diego Costa and Alexis Sanchez."
Costa’s future at Chelsea became uncertain last month following interest from China and a reported disagreement with Antonio Conte.
Diego Costa is thought to be on Atletico Madrid's radar
Alexis Sanchez's Arsenal contract expires at the end of next season
He looks to have patched things up with the Italian boss though and he is now considering extending his contract at Stamford Bridge.
At Arsenal meanwhile, Alexis Sanchez’s future at the Emirates remains uncertain with the Chilean yet to sign a new deal.
The forward is holding out for an increase on his current wages but the Gunners are yet to meet his demands, despite his current deal expiring at the end of next season.