The Rossoneri announced an agreement with City last night over the Italy international.
Larini told TMW: "For the age and his quality he is undoubtedly the most important shot of this session of transfers. With him and Stephan El Shaarawy, Milan are good for ten years. They're a formidable attacking pair and Balotelli is a potential champion.
"Now, you need only to see if mentally he can respond to becoming the best."