Former Inter coach Luigi Simoni has advised the club to hold on to Mario Balotelli and sell right-back Maicon instead.
The 71-year-old, who was in charge of the club for a two-year spell in the late 1990's and won a UEFA Cup trophy, believes Balotelli is a future star of the game, while full-back Davide Santon could fill Maicon's role.
"An offer is good for Manchester City if they bid €30-35 million. However, if I were [Inter president Massimo] Moratti I would think he will be worth €90m in a few years and potentially a mix of Cristiano Ronaldo and Messi," he explained to La Gazzetta dello Sport.
"So either an offer of €50 million for Balotelli or keep him grounded where he is. Maicon instead could be sold and then give space to Santon."
Recent news for the peninsula suggests that Manchester City have submitted a €28 million plus a potential €7m for in bonuses for the talented teenager. A potential replacement, should he leave the San Siro, is Villarreal and Italian international striker Giuseppe Rossi.