Barcelona attacker Joao Felix has rejected the claims of former Atletico Madrid teammate Antoine Griezmann.

Griezmann claimed Felix didn't work hard enough to succeed with Atletico, which shipped him on-loan to Barca in August.

Ahead of Sunday's clash between the two teams, Felix responded: "Well, okay no, he has his opinion and I will not comment..."

But when pressed if things could've been done better, he also said: "Obviously.

"There are things that could have been done better. Both me and everyone. There are things that have not gone well. It is not only my fault, but several, yes."