Schalke has agreed to terminate the contract of attacking midfielder Kevin-Prince Boateng.
Boateng - who moved to Schalke from AC Milan in August 2013 - is expected to rejoin Milan and has already been training and playing in friendlies with the Serie A outfit for over two months.
The Ghana international was suspended by Schalke following May's 2-0 defeat at Cologne, with the club blaming a "lack of mutual trust" and informing Boateng he could find a new club.
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And a statement on Schalke's official website read: "FC Schalke 04 and Ghana international Kevin-Prince Boateng have decided to mutually terminate his contract at the club. The terms of the agreement will remain undisclosed.
"He made 60 competitive appearances [46 in the Bundesliga, twelve in European competitions and two in the DFB Cup], in which he scored seven goals. The 28-year-old will become available to play for other clubs on 1st January 2016."