Estupinan has been a key member of the Brighton squad since moving to the Amex Stadium for £14.9m in 2022.
The Ecuador international made 30 Premier League appearances last season, contributing one goal and one assist.

Estupinan still has two years left on his contract with Brighton, but according to talkSPORT, the club are willing to let him leave this summer if they receive a reasonable offer.
Coach Fabian Hurzeler's side have just strengthened their left-back squad, with the arrival of Maxim De Cuyper from Club Brugge.
MU have negotiated with representatives of Estupinan, but they also face competition from AC Milan - who want to bring him in to replace Theo Hernandez.
As for the Red Devils, Luke Shaw and Patrick Dorgu are two options on the left wing of coach Amorim. In addition, he has two young factors in Harry Amass and Diego Leon.
Tyrell Malacia alone is in need of liquidation so he has not been able to join the team in recent times.
Source: https://vietnamnet.vn/mu-bat-ngo-dam-phan-chieu-mo-sao-brighton-2422611.html
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