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Central Referee Board (MHK) member Sebahattin Şahin, released under judicial control, has also resigned from his post. Board chair Ferhat Gündoğdu had been arrested earlier.
Şahin announced his departure in his resignation letter. Gündoğdu's lawyers said the chair stepped down to avoid harm to the Turkish Football Federation (TFF) and to the judicial process. Five suspects, including Gündoğdu, had been arrested in the investigation by the Istanbul Chief Public Prosecutor's Office.