
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 signed France U17 international Kenan Doganay. The 1.90-metre-tall defensive midfielder, who has Turkish roots, joins Leverkusen from the U19s at French top-flight club Olympique Lyon. He will initially train with and play for the U19 team.
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The Sports Tribunal of the German Football Association (DFB) has fined Bayer 04 Leverkusen €185,000 for spectators setting off pyrotechnic devices during a total of five competitive matches. This relates to four Bundesliga matches and the DFB Pokal semi-final against Bayern Munich. The highest individual fine relates to the away match at FC Köln at the end of April.
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Ken Izekor is leaving Bayer 04 Leverkusen to join third-tier side Alemannia Aachen with immediate effect. The 19-year-old centre-forward joined the club from Alemannia in 2018, and Izekor is now returning to his hometown.
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