
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.


For Villarreal CF, the match at Bayer 04 on Wednesday, 28 January (kick-off: 21:00 CET), will be their last appearance on the European stage this season. The Spanish side, currently fourth in La Liga, are still without a win in the UEFA Champions League and, with just one point from their seven games so far, have no chance of making the play-offs. The 2021 Europa League winners can therefore play without any pressure at the BayArena and will be looking to bow out of the competition with a good performance. The lowdown on our next opponents.
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Bayer 04 Leverkusen will to have manage without forward Eliesse Ben Seghir. The Morocco international suffered a ligament injury in his left ankle before the AFCON final defeat against Senegal (0-1 a.e.t.).
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The VBL Club Championship 2025/26 continues. Tonight, 27 January (live on Twitch and on the Bayer 04 app from 18:00 CET), the Leverkusen eSports team will play the remaining three matches in the online preliminary round of Showdown Four. They are up against FC Kaiserslautern, SC Freiburg and the current club champions and Showdown Three winners RB Leipzig, with whom Bayer 04, club runners-up and Showdown One winners, shared some memorable moments, especially last year. The lowdown on our next opponents.
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Bayer 04 Leverkusen have signed Swiss goalkeeper Jonas Omlin from Borussia Mönchengladbach. The 32-year-old joins the Werkself from the Lower Rhine Bundesliga club on loan to the end of the current season. This is the reaction of Bayer 04 to the injury to first choice keeper Mark Flekken, who faces a long spell on the sidelines.
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Welcome to Leverkusen, Jonas Omlin. Bayer 04 have signed the 32-year-old goalkeeper on loan from Bundesliga side Borussia Mönchengladbach until the end of the season. Managing director sport Simon Rolfes described the Swiss shot stopper, signed by the Werkself in reaction to the long-term absence of first choice keeper Mark Flekken, as an "internationally experienced keeper." Bayer04.de takes a closer look at the new signing, who will wear the number 18 jersey.
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