The Swedish is currently inviting controversy at LA Galaxy.
Moggi, who signed Ibra for Juve, told Firenzeviola.it: "Zlatan has a biological physique that allows him to perform at his best even at his age, just like Cristiano Ronaldo.
"He is sowing victories everywhere, even in America. Certainly it will not be Serie A, but goals must be scored wherever you go to play and if he came to Fiorentina also for the young he would be fantastic because they could perhaps learn something more from him that not even the coach is able to give.
"Ibra also inspires fear in everyone even now, but it is obvious that he is no longer the player he was at my time."