Torreira has impressed during his season-long loan spell at the Serie A side this season, featuring 35 times in all competitions. He also played a vital role as Fiorentina reached the semi finals of the Coppa Italia, while finishing seventh in Serie A.
Now after an impressive season at Fiorentina, the Italian club want to sign him on a permanent deal for a fee reportedly in the region of £10million. The 26-year-old has just a year left on his contract at Arsenal, but the deal could be on the verge of collapsing if the required amount is not agreed.
Commisso is unhappy with Torreira's agent going public about the situation and he told TMW: "I am very disappointed with what happened in the 24 hours after we won the conference.
"Unfortunately, as happened with (Rino) Gattuso, certain fans fell for it with the petition for Torreira. The agents got this news out.
"The agents have to understand me like I did with Gattuso or (Dusan) Vlahovic; they won't win with me. I'll be tougher and get angry. I don't want to talk about the market because I'm not here to talk about that.
"There are the insiders who will think about that. I know I'm disappointing you, but I won't talk about the market. There may be the possibility of revisiting the situation with Torreira in the coming weeks, but I don't want to give any hint of optimism or pessimism."