Born in Bursa as the youngest of nine children, Çelik went through the Bursaspor youth academy and became a professional in 2015. He signed on loan with Karacabey Birlikspor in 2015.
On 8 July 2018, Çelik signed with Lille in France on a five-year contract.[3][4] Çelik made his professional debut in a 3–1 Ligue 1 win over Stade Rennes on 11 August 2018.[5]
Roma
On 5 July 2022, Çelik’s transfer to Roma from Lille was made official by the Serie A club, Roma.[6] He has signed a four-year contract with the Giallorossi that runs until 30 June 2026.[7] He made his Serie A debut in a 1–0 win over Cremonese on 22 August 2022.