The attacker is optimistic about his side's chances of Serie A success, and is full of praise for team-mate Borja Valero
The Viola have not won the Scudetto since 1968-69, but the 26-year-old feels they could enjoy domestic success again shortly, and says Serie A is more competitive than other European leagues such as Spain's Primera Division.
"I believe Fiorentina could win the title again some day," Rossi was quoted as saying by La Gazzetta dello Sport.
"Serie A is not like La Liga, where Barcelona and Real Madrid always dominate. There's more balance in Italy. Teams like Fiorentina, Napoli, Lazio and Roma can all win the Scudetto as well."
The former Manchester United attacker then went on to praise team-mate Borja Valero for his tactical awareness.
"In football, people generally notice tall player first. But there are also guys with normal physique who have an extraordinary tactical awareness.
"Players who already know how to move and what to do before they even get the ball. Borja is one of those guys."
Valero joined Fiorentina from Villarreal in the summer of 2012 and has since become a key player for the Serie A outfit.