Griezmann will leave Atletico Madrid after five years and the French World Cup winner is reportedly destined for Barca.
While Griezmann, Atletico and Barcelona have remained tight-lipped, the 28-year-old star forward seems to have his mind made up.
Since arriving, Griezmann has won the Europa League, UEFA Super Cup and Supercopa de Espana in Madrid.
Griezmann scored 15 La Liga goals as Atletico finished second behind Barca in 2018-19, while he netted 21 in all competitions.
Fier d’être français— Antoine Griezmann (@AntoGriezmann) June 4, 2019
Alain Mounic / L’Équipe pic.twitter.com/nuve8X5N9b
Despite the constant links to the Spanish champions, some doubts have been raised.
"I don't know where he's going, he didn't say," he told Onda Cero . "I don't have the slightest idea where he will go. I don't think anyone knows."
But it appears the Atleti boss was wrong in some way, as at least one person, Griezmann himself, believes he knows where he'll be.
And while Griezmann, who took part for France on Saturday as they lost in shocking fashion to Turkey, falling 2-0 without registering a shot on goal for the first time in a decade, he did rule out one team he has been linked to.
"I can only say that it will not be Miami," he said.
The forward is among a host of big names that have been linked to David Beckham's Miami MLS franchise, which will start play in 2020.