
"With Mitchell Weiser's signing, we've taken an important step in extending the depth of our squad and also increasing our quality," said the Bayer 04 sporting director Rudi Völler. "That has become crucial against the background of our return to European football next season. In order to deal with the commitments on the European stage in addition to the Bundesliga and DFB Cup and continue to be successful, we need to have like-for-like and high quality alternatives in all positions," added Völler. "Over recent seasons he has shown what a great talent he is. But we can see he's not yet exhausted his potential. Mitchell has everything to develop into an absolutely top player here at Bayer 04 in the next few years."
Weiser, 23 last month and with a contract to 2023, will wear the 23 shirt at Leverkusen. A numbers game with symbolic character - at the age off 23, he headed the Germany U21 team to victory against Spain in the final of the European Championships in 2017. His lucky number will accompany him at Leverkusen. "23 is my absolute favourite number. It's great I can have it here too," declared Weiser.
The objectives for next season are clear for the technically gifted, and versatile on the right wing, son of the Leverkusen U17 coach Patrick Weiser. "Bayer 04 are a great team and I've always enjoyed watching them. They play attractive, flexible, quick and aggressive football. I'm really looking forward to being part of it over the next few years and I want to make a contribution to us being successful in the future."


Bayer 04 Leverkusen have appointed Carles Martínez Novell as the new head coach. The 42-year-old Spaniard worked for FC Toulouse in the French Ligue 1 until the end of the season. Martínez finished last term in ninth place with the club from the south of France. He will take over the Werkself on 1 July 2026 and has signed a contract to 30 June 2028. Martínez, whose contract with Toulouse expires at the end of the month, succeeds Kasper Hjulmand at Leverkusen, who is leaving the club after one season.
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Welcome to Leverkusen, Carles Martínez Novell. Bayer 04 have appointed the 42-year-old Spaniard as the new head coach on a contract to 2028. Martínez most recently worked for FC Toulouse in the French Ligue 1 until the end of the season. He previously spent four years at Barcelona's legendary academy La Masia in his home city. Bayer04.de introduces Martínez in more detail.
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Bayer 04 plans for the 2026/27 pre-season continue to take shape. The Werkself will kick off the new season in mid-July with the return to the training ground. The highlight will be the official season opener on 8 August at the BayArena, including a friendly against La Liga club Sevilla. Friendlies in Germany will take the team to neighbouring Monheim, Offenbach and Jena.
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Strengthening the Bayer 04 Leverkusen youth teams: Konstantinos Kotsifakis will join the Werkself from Bundesliga 2 club Hertha Berlin for the 2026/27 season, where he will be a permanent member of the Leverkusen U19 coaching set-up. The German-Greek will also take on an operational role in coaching the Bayer 04 Future Team. The 29-year-old was most recently head coach of the U17s at Hertha Berlin.
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Another award for the Bayer 04 head groundsman and staff: After coming top in the 2021/22, 2022/23 and 2024/25 seasons, the BayArena pitch came second in the Bundesliga Pitch of the Year ranking for the 2025/26 season. VfL Wolfsburg secured the top spot this year, with TSG Hoffenheim in third place.
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