The 27-year-old midfielder faces a lengthy spell on the sidelines after suffering an adductor problem in Sunday's defeat at the hands of Udinese
AC Milan midfielder Giacomo Bonaventura will miss the rest of the season after undergoing surgery on an adductor injury.
The 27-year-old was forced off in the 26th minute of Milan's 2-1 defeat at Udinese at the weekend having opening the scoring in that game.
Reports consequently suggested that Bonaventura's season was over and the San Siro club have confirmed that the Italy international will be unavailable for at least four months.
"AC Milan announce that Giacomo Bonaventura underwent surgery on Wednesday, performed by professor Sakari Orava, assisted by AC Milan’s medical director Rodolfo Tavana," a statement on the club's website reads.