Brighton announced their refusal to Man City's £30m bid for signing left-back Marc Cucurella.
The Spanish international moved to Brighton on from Getafe after signing a five-year contract with the club.
Brighton managed to sell midfielder Yves Bissouma in a £30m deal last month as they have been put under pressure to make new deals.
Cucurella has just one cap with Spain team and played for the Spanish U-23 team, who claimed the silver medal at the 2020 Tokyo Olympic Games.