Mutu have had a great season with the Viola.
He said: “Maybe I have made a few mistakes in recent weeks but I think I have made my contribution over the season.
“It is not always easy to play at the top level and you need to grit your teeth. We are playing for three points against Cagliari and my future is with the Viola.
“Toni is a Fiorentina player and very important to the team. It is not for nothing that he is a World Cup winner and he has given a lot to the team this season.”