Midfielder has passed a medical and signed his new contract.
AC Milan have confirmed the sale of Kevin-Prince Boateng to Schalke, with the fee believed to be in the region of €10m.
The 26-year-old underwent a medical on Friday morning and has now signed his contract to seal a return to the Bundesliga after three years in Serie A.
The former Portsmouth and Tottenham midfielder played in 100 games for the Rossoneri, and scored 17 goals with the last two arriving in the win over PSV on Wednesday night.
Having recently spoken about his desire to return to the Bundesliga at some stage in his career, it appears his wish has come sooner than expected as he looks ahead to a new challenge at Schalke.
Milan confirmed the news in an official statement on their website, with a short message which read: “A.C. Milan wishes to communicate that Kevin Prince Boateng has been transfered to Schalke 04.”
The messages of support have already begun to appear on Twitter, with Boateng’s brother, Jerome, welcoming him back to Germany while former team-mate Nigel De Jong and Milan have wished him well for the future.
— AC Milan (@acmilan) August 30, 2013
The search for his replacement will now begin for Milan, who have been linked with a move for wantaway Real Madrid ace Kaka.
The Brazilian international revealed on Thursday night that he wished to leave the Spanish capital in order to obtain regular first-team football, and reports in the Italian media have again linked him with a reunion with the Rossoneri.
Meanwhile, having secured the additional payments that come with Champions League football, combined with Boateng’s fee, speculation has also insisted that Milan may reignite their interest in CSKA Moscow playmaker Keisuke Honda.
With the additional funds available, Milan can now realistically match CSKA’s valuation of the player and sign him now as opposed to waiting until January when he becomes a free agent.