AC Milan secured the signing of Ecuador international defender Pervis Estupinan from Brighton on a five-year deal on Thursday.
The left-back joins a Milan side that missed out on European qualification last season after their worst Serie A finish in a decade.
The club brought back former manager Massimiliano Allegri for a second spell in May and signed former Real Madrid midfielder Luka Modric earlier this month.
Estupinan, 27, made 104 appearances for Brighton after joining the Premier League club from Villarreal in 2022.
I have enjoyed working with Pervis and he has made a significant contribution to the club during his time here, said Brighton boss Fabian Hurzeler.