Reports earlier this week has linked the 28-year-old with a move to City.
“I have seen the reports naming Alessandro with Manchester City, but I don’t know anything about it,” Gamberini’s agent, Francesco Romano, told Sky Sports.
“Alessandro is happy to be linked with Manchester City, but he is happy at Fiorentina and has a contract there.
“A move would be difficult as Alessandro is a very important player for Fiorentina and he is a candidate for Italy for the World Cup.”