|Date of birth||14 January 1934|
|Place of birth||Kadıköy, Turkey|
|Height||1.78 m (5 ft 10 in)|
|* Senior club appearances and goals counted for the domestic league only|
Born in Kadıköy, Ersoy began playing youth football for Fenerbahçe. He would play for Vefa S.K. and Ankaragücü before appearing for the Fenerbahçe senior squad. He finished his career with SV Austria Salzburg.
Ersoy studied to be a football coach in Cologne, Germany and received his license in 1967.