Didier Deschamps left many top stars out of his World Cup squad but kept faith with Lemar, who scored recently for France in a win over Colombia and bagged a brace a year ago against the Dutch.
Griezmann is expected to announce his future before his nation's World Cup campaign begins against Australia on Saturday.
But he told a news conference: "I apologise - I am really very sorry". I have made my choice.
The duo are being interviewed at the same time, reeling off names of their favourite players as the presenter says: 'They are so cute we can not refuse them anything'.
Reported to be the Spanish champions' first choice target of the summer window, many have anticipated that the Frenchman will move to Catalonia once his release clause drops to €100m in July.More news: Kate Middleton perfected summer style in a $70 Zara dress
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France coach Didier Deschamps prohibits players from undergoing negotiations during tournaments, pushing Griezmann towards making a decision.
Griezmann insists he is made a decision on his club future but has refused to reveal if he will remain with Atletico next season.
Atletico are also working on enticing Griezmann to stay by agreeing a deal in principle on Tuesday to sign his France teammate Thomas Lemar from Monaco.
Dermot Corrigan is a Madrid-based football writer who covers La Liga and the Spain national team for ESPN FC.