Former Barcelona defender Jeremy Mathieu is unconvinced by what Antoine Griezmann is doing this season.

He feels Griezmann hasn't shown his Atletico Madrid form since moving to the Blaugrana.

"He isn't at the level he was at Atletico," Mathieu said.

"I think he was wrong to sign for Barcelona.

"At Atletico he was an important piece of the team, and I don't know if he has that place at Barcelona."