The 20-year-old right back has taken the Premier League by storm, breaking into the Eagles' first-team at the end of last season - and he hasn't looked back since.
His recent eye-catching displays, despite Palace's poor form, have caught the eye of a number of top sides, with Manchester City the latest.
It has been reported by the 'Daily Mirror' that Pep Guardiola is keeping tabs on Wan-Bissaka, and the club have identified the England U21 international as a potential future signing.
Everton have also reportedly taken an interest in the player, although no concrete approach is believed to have been made by any parties.
Wan-Bissaka signed a new contract with the club in April, and Palace are not in desperate need to sell, so it would take a significant bid to prise him away from Selhurst Park.
The Croydon-born defender is tied down until 2022, but if his stock continues to rise, Palace are likely to offer a further extension with much-improved wages.