The left-back is being paired with Milan and Lazio, but the Rosanero are adamant that he is going nowhere.
"Balzaretti has a contract with us," President Maurizio Zamparini told Radio Radio. "The only club who have asked me for him is Napoli.
"Only Aurelio De Laurentiis made an enquiry. He is a gentleman and he came directly to me without involving agents.
"He phoned and asked if there was the possibility that I could sell the player to Napoli, but I told him that Balzaretti will stay here."