The contract of Sevilla defender Jules Kounde carries a buyout clause.
The Frenchman has been linked with Manchester United, PSG and Liverpool in recent days.
ESPN says Sevilla will not sell the 21-year-old for less than €65m.
The youngster's current contract with the Andalusian club will expire in 2024 and it has a huge release clause of €90m.
But Sevilla are prepared to sell - but still only at top price.