Cengiz was appointed a member of the by-law committee by the council of Galatasaray S.K. He was in charge of preparing a new by-law for the sports club. On January 20, 2018, Cengiz became the 37th president of Galatasaray S.K., winning with 1,703 of the 3,416 votes cast while 1,623 delegates voted for the defending president Dursun Özbek.