
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 are riding a wave of success on the European stage: After three wins from their first three games and as the only team yet to concede a goal, the Werkself sit second in the table in the group stage of the UEFA Europa League. With another three points in their first-ever competitive match against Olympique Marseille on Thursday night, 5 November (kick-off: 21:00 CET), Bayer 04 could leap to the top of the table. Meanwhile, the French side are riding the wave of a winning streak in Ligue 1, but are yet to pick up any points in the Europa League. For one Werkself player, Thursday night will mark a reunion with his former team-mates. Today’s matchday news.
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The Europa League campaign continues: Bayer 04 host Olympique Marseille at the BayArena on matchday four of the group stage on Thursday 5 November (kick-off: 21:00 CET). Ahead of the clash against the club from the French Mediterranean coast, head coach Carles Martínez spoke about the visitors’ form and had some good news regarding the squad. Former OM player Facundo Medina spoke, amongst other things, about the factors that will be crucial against his old club.
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The Bayer 04 Round of 16 tie in the 2026/27 DFB Pokal has been scheduled. The Werkself will host Bundesliga rivals RB Leipzig on Wednesday, 2 December, at 18:00 CET. That was announced by the German Football Association (DFB).
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Video game developer Electronic Arts (EA), in collaboration with the Bundesliga, has announced the six nominees for the Bundesliga Player of the Month award for October 2026 – and Bayer 04’s Ibrahim Maza is among them. Fans of the Black and Reds can vote from now until Sunday 8 November (23:59 CET).
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