Turkish champions Istanbul Basaksehir want to sign Brighton left-back Bernardo.
Brighton are in talks with the Super Lig club over a possible season-long loan for the 25-year-old, who made 14 appearances in the Premier League last season.
West Ham and Newcastle are also looking at Bernardo, although the Hammers would have to release players before they could consider making a bid.
Bernardo has played 43 times for Brighton in all competitions since joining the club from Bundesliga side RB Leipzig in the summer of 2018.
His current contract on the south coast expires on June 30, 2022.
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The summer transfer window will run for 10 weeks from July 27 and close at 11pm on October 5.
A domestic-only window for trades between the Premier League and EFL then runs from October 5 and closes on Friday, October 16 at 5pm.
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