
The background to the ban is a dispute between Hakan Calhanoglu and the Turkish club Trabzonspor. During his time at Karlsruhe SC in 2011 Calhanoglu, as a minor, reached agreement with Trabzonspor regarding a transfer. However, he extended his contract at Karlsruhe SC and later joined Hamburg SV. The CAS agreed with FIFA that the actions of the player represented a breach of contract with Trabzonspor.
Bayer 04 Leverkusen were not involved in the proceedings as the player signed for the Bayer 04 Leverkusen several years after the incident. "Of course, we regret this decision which is completely incomprehensible for us," said sporting director Rudi Völler. "It's a heavy blow for Hakan but also for us. We’re also being heavily punished although Bayer 04 Leverkusen had nothing to do with the events in 2011. We are now missing a very important player in a crucial phase of the season."
Bayer 04 CEO Michael Schade also criticised the verdict. "In addition to the player, it also affects the club that played absolutely no part in the events of the time. Unfortunately we are left with no alternative but to accept the decision," said Schade.


Bayer 04 Leverkusen have secured a new premium partner in the form of DRIVIO. DRIVIO, already part of the club’s partner portfolio as a reliable car subscription partner for Bayer 04, will continue to support the club in this capacity and, with immediate effect, also join the premium group of companies that cooperate closely with the Werkself. The premium and car subscription partnership between Bayer 04 Leverkusen and DRIVIO will initially run until 30 June 2027.
Show more
Following last weekend’s big game against Wolfsburg, Bayer 04 Women face another exciting challenge as they visit Hoffenheim to kick off Matchday 3 in the Google Pixel Bundesliga on Friday (kick-off: 18:30 CEST).
Show more
Under the slogan ‘Holidays without War’, 60 children from war-torn Ukraine took part in the summer camp organised by the German-Ukrainian association Blau-Gelbes Kreuz in Leverkusen and the surrounding area in August. The children aged between 10 and 14 – many of whom have lost their parents in the war – come from the Ukrainian twin towns of Leverkusen, Cologne and Monheim am Rhein: Nikopol, Dnipro and Volodymyr. Bayer 04, Bayer AG and TSV Bayer 04 supported the camp to mark its 10th anniversary, enabling even more children and young people than in previous years to spend a few carefree days’ holiday away from the war in the Rhineland.
Show more
Midfielder Ruby Grant is leaving Bayer 04 Leverkusen and joining Portuguese runners-up Sporting CP a year before her contract expires. The 24-year-old has been at the Werkself since January 2025.
Show more
New to Leverkusen and straight up onto the roof at the BayArena: Guéla Doué has arrived. In an interview with Werkself TV, the new right-back talks about his previous links with Bayer 04 and how much he’s looking forward to his first home match. Have a look!
Show more