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.
The final whistle of the current 2025/26 season marks the end of a unique partnership for Bayer 04 Leverkusen. After more than three decades of collaboration and highly eventful times, the Bundesliga football club and the private brewery Bitburger are going their separate ways.
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Around four months after their bitter exit in the DFB Pokal Round of 16, the Bayer 04 Women are once again away to Hamburger SV. On Monday night (18:00 CEST), the Werkself will not only be looking to pick up important points in the final phase of the Google Pixel Women's Bundesliga at the Volksparkstadion, but also to make amends for their defeat on penalties.
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Eleven Bayer 04 players are in action for their national teams in this final international break in 2025/26. Among others, Patrik Schick is competing with Czechia for a ticket to the World Cup in the summer. The blog on games involving the Werkself...
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A simple approach to sport with games, fun and a highlight at the end: Bayer 04 organised a very special training session for 40 participants aged between six and 27 in cooperation with the Football Association of the Middle Rhine (FVM). At the day of action for women and girls with disabilities at the Kurtekotten Performance Centre, many of the participants gained their first experience of football.
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