AC Milan's Giacomo Bonaventura is expected to be sidelined for up to nine months after undergoing successful knee surgery in Pennsylvania, meaning he will likely miss the rest of the 2018/19 campaign.

The midfielder had started the season brightly, scoring three goals in eight Serie A appearances. However, he has not played since sustaining the injury sometime after AC Milan's 2-1 home defeat to Real Betis on October 25th during a Europa League group match.

"AC Milan announces that Giacomo Bonaventura underwent surgery on the osteochondral lesion of his left knee," read an official statement on their official website.

"Today's cartilage repair procedure, carried out in Pittsburgh by the surgeons Volker Musahl and Freddie Fu in the presence of the AC Milan medical staff, was successful and the recovery time is estimated in 8/9 months."

Arguably in the prime of his career at the age of 29, the news will be devastating to Bonaventura, a player who joined Milan from Serie A rivals Atalanta in 2014.


His only silverware during his time so far at San Siro was a Supercoppa Italiana victory over Juventus in 2016, in which he cancelled out Giorgio Chiellini's opener to see his side eventually win on penalties.

With an initial prognosis of only five months out, this latest update comes as a big blow for Gennaro Gattuso's side who currently sit fifth in the Serie A, 15 points adrift of leaders Juventus.

With key midfielders Lucas Biglia and Hakan Çalhanoğlu both having struggled this season with a calf problem and a lack of fitness respectively, it leaves their midfield looking thin. Furthermore, the summer addition of Chelsea-loanee Tiémoué Bakayoko hasn't exactly had the impact the club was hoping for. 


It looks likely now that Milan will have to go the market in January to find reinforcements, hoping that the prospect of playing for one of Europe's biggest clubs will be alluring enough to entice potential candidates.