Honestly if I may say something concerning this, I would say Griezmann should leave the club and look for another club where is effort will be felt.

No one can ever believe the player will not shine brighter than he was when he was in Atletico Madrid. Griezmann happen to be the best player for Atletico and he was always a treat to the like of Barcelona and Real Madrid. One would believed he would play better with Messi but unfortunately he has not been performing up to expectation for Barcelona.

A friend of mine use to believe that there are some players that are meant for small team and there are some that are meant for big team. He further says if a player that is meant for small team plays in a small team, his impact will be felt better than when he plays for big team.

Though I am not saying this is what happen to Griezmann but I believe he needs to leave and join a team that his impact will be felt.