The 25-year-old had already agreed to a new deal with the Italian heavyweights.
But new contracts now need to be rubber stamped by the current owners – and Sino Europe Sports who are set to take over in the New Year.
“Jack Bonaventura was linked with a move to Chelsea ”
The proposed takeover by wealthy Chinese investors has been going on for some time.
And the delays have led to speculation that Bonaventura could move on.
However, Italian news outlet Super News claim the midfielder will stay at the San Siro after the new buyer green lighted the deal.
Antonio Conte is looking to bolster his midfield options and Bonaventura might have fit the bill.
Cesc Fabregas has been linked with a move away from Chelsea.
And Brazilian playmaker Oscar has attracted interest from the Chinese Super League.