— Sevilla Fútbol Club (@SevillaFC) September 14, 2020
28-year-old Acuna has joined the La Liga club on a four-year contract and immediately joined up with his new teammates.
Sporting will receive a €10m fee for Acuna plus a further €2m in variables down the line.
Acuna spent three years at Sporting after joining from Racing Club, making a total of 135 appearances.
Acuna’s arrival at the Ramon Sanchez Pizjuan closes the door on a possible return for Sergio Reguilon.