روي كوستا
On 3 July 2017, Çalhanoğlu signed a four-year contract with Serie A club A.C. Milan. The fee was reported as an initial €20 million, rising to €24 million. He was assigned the club's prestigious number 10 jersey, previously owned by the likes of Gianni Rivera, Ruud Gullit, Dejan Savićević, Zvonimir Boban, Rui Costa and Clarence Seedorf.