Manchester City linked Ismael Bennacer has a €50 million (£45m/$59m) release clause - according to Calcio Mercato.
The clause in question will become active next June, with Real Madrid and Paris Saint-Germain also interested in the 22-year-old.
Bennacer would prefer to stay at Milan, however, haven proven himself as one of the most important members of Stefano Pioli's squad.
