Sid Lowe: Griezmann will be 'relatively affordable' for Barca
The Catalan club have been strongly linked with a move for the France international in recent weeks ahead of a reported move in the New Year.
And rumours this week suggested Barcelona president Josep Maria Bartomeu had held discussions with Griezmann’s relatives regarding a potential move to the Nou Camp.
But Atletico Madrid today filed a formal complaint to FIFA against Barcelona over their approach to Griezmann.
A Fifa spokesman said: "We can confirm that we have received a complaint from Atletico Madrid."
But Barcelona have now come out with a defiant message insisting they have done nothing wrong.
"Barcelona have not negotiated with any player, so we understand that no irregularity has been committed," a club spokesman told MARCA.
Griezmann’s future at the Wanda Metropolitano remains uncertain with Manchester United also believed to still be interested in the striker.
And Atletico boss Diego Simeone said last week that he will not stand in the player’s way should he wish to leave.
GETTY
Barcelona have denied any wrongdoing following Atletico Madrid's Antoine Griezmann complaint
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"Of course he can leave at some point, like Diego Costa and Arda Turan did in their day," Simeone told L'Equipe.
"I love watching my players grow, and if one of them tells me that they have the unique opportunity of playing for a certain team, after they did everything they could for me, like Griezmann has done, I'll say it's not a problem.