According to recent developments, an agreement has been reached between Brighton and AC Milan for Estupinan's transfer. The transfer fee is expected to be €17 million, along with an additional €2 million in add-ons. Estupinan made 36 appearances in all competitions for Brighton last season.

Brighton has already secured a replacement for Estupinan, signing Maxim De Cuyper from Club Brugge earlier in the summer. The transfer of Estupinan is now set to take place, with AC Milan acquiring a new left-back for their team.