​New ​Barcelona signing Antoine Griezmann believes that his performances for his new club will serve as his apology for ​his infamous documentary saga with Gerard Pique in which he made a U-turn on his transfer to Camp Nou last year.

As reported by ​Marca, while at his unveiling, Griezmann said, "[Regarding the documentary] If I have to say sorry, I'll do it on the pitch. It's [the place] where I best do the talking."

The World Cup winner who was unveiled with the number 17 shirt took a moment to show his gratitude towards his former managers and clubs as he started by stating, "I would like to thank Real Sociedad who gave me my first professional contract."

He continued, "I would like to thank Enrique Cerezo, Diego Simeone, Atletico Madrid and all my teammates that helped me become the player I've become for my club and country. It's always hard to leave a place, a home, where you feel comfortable, and where you have family, friends and colleagues."

Revealing his feelings for Atletico, Griezmann claimed, "I only have admiration and respect or that club. I gave everything on the field from beginning to the end. Thanks to Barcelona for giving me this opportunity. I accept the challenge and I am excited to be here."

Finally talking about why he joined Barcelona, the Frenchman concluded, "It's a new challenge. I want to push myself and not get comfortable. I want to be a big player in the starting XI and at a top club. I want to win the things I haven't won yet, the Copa del Rey, LaLiga Santander and the Champions League."