
The injury to the Dutchman, who joined the Werkself from Manchester United during the winter transfer window, requires an operation. Following that, Fosu-Mensah will complete his rehab at the Leverkusen 'Werkstatt'.
"It's a tough blow for Timothy," declared sporting director Simon Rolfes. "We will do all we can to support him and help him come back stronger from this difficult situation."

Full focus on Hoffenheim: after the late postponement of the away match at Hamburger SV, the Werkself are looking forward. To get themselves in top shape for the key clash at top-six rivals TSG Hoffenheim on Saturday 17 January (kick-off 15:30 CET), a number of players showed full commitment even on a day off - including two AFCON returnees...
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After Rio de Janeiro, it's off to Thuringia: This summer, Bayer 04 Leverkusen will prepare for the 2026/27 football season in Germany. While Brazil was the destination last year, the Werkself will now set up their training camp in Blankenhain, just outside Erfurt, from 1 to 7 August 2026.
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Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
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Due to the last-minute postponement of the Bundesliga match between Hamburg and the Werkself on Tuesday, 13 January, Bayer 04 will reimburse the ticket price to all 3,500 fans who had already travelled to Hamburg as a sign of appreciation. The tickets remain valid for the rescheduled match (date not yet set).
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Bayer 04 Leverkusen will have to manage without centre-back Edmond Tapsoba in the coming weeks. The Burkina Faso international returned to the Werkself from the Africa Cup of Nations in Morocco with a muscle injury.
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