That tweet seems to have added something he didnt say.
"I had never known such a difficult period in my career," he said in an interview with RTL.
"The France team is a breath of fresh air, the group is exceptional, it's magic."
France boss Didier Deschamps sympathises with the former Juventus star and hopes to help him get back to his best despite a difficult time.
"He is in a situation with his club where he cannot be happy, neither with his playing time nor with the position he is playing," Deschamps told reporters at a press conference on Monday.
"He is not in his best period, he has had a series of injuries and Covid-19, which has hit him quite hard. He needs to find his rhythm.
"We can't say that he is fulfilled in what he does at club level. With me, there is no such concern, but I try to manage it too. When a player is not comfortable at his club, obviously, he is happy to play for the France team."