
He will undergo further treatment at Bayer 04. A replacement has yet to be called up.
Germany U21 coach Stefan Kuntz said: "It's a purely precautionary measure. In discussion with Jona, our doctors and Bayer Leverkusen we have reached the decision to send the player home for treatment. Of course, it's a pity one of our leading players misses out on the start of the European Championship qualifiers but we do have options in central defence in our squad."

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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Werkself TV shows the highlights of Bayer 04's 3-1 win at RB Leipzig Matchday 15 of the 2025/26 Bundesliga season...
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Bayer 04 ended the year with a 3-1 win away at RB Leipzig and will go into 2026 in third place in the Bundesliga table, leapfrogging their opponents, who had previously not dropped a point at the Red Bull Arena this season. Martin Terrier and Patrik Schick scored to turn around a first-half deficit before Montrell Culbreath rounded things off with a goal on his senior debut deep into added time. Ezequiel Fernández, Axel Tape and Lucas Vázquez also all returned from injury.
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Bayer 04 are away at RB Leipzig for their final fixture of 2025 in the Bundesliga on Saturday (kick-off: 18:30 CET). Here’s all you need to know ahead of the Matchday 15 encounter at the Red Bull Arena.
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