He made his league debut against Antalyaspor on 15 August 2010, coming on as a substitute for the injured Demirel at the beginning of the second half keeping a clean sheet for the rest of the match.
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Günok entered the 2010–11 season as the third-choice goalkeeper, behind Volkan Demirel and Volkan Babacan.
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However, after Babacan conceded seven goals in two pre-season matches, Günok was given a chance against Genk.