Chelsea and Tottenham target Willian will not be allowed to leave Shakhtar Donetsk for anything less than £28million, according to the Ukrainian side's coach Mircea Lucescu.
The Brazilian was thought to be close to moving to White Hart Lane in the summer and has been a long-term target for Chelsea.
But Shakhtar have slapped a huge price-tag on the 24-year-old, who has also attracted interest from Inter Milan.
"If [Inter president Massimo] Moratti asks me about Willian, I will tell him that Shakhtar want to achieve things in Europe and will not sell their players. There's the buy-out clause, though, which is €35m (£28m) for Willian," Lucescu told Tuttosport.
"Chelsea paid €31m (£25m) for Oscar this summer. The difference between Willian and Oscar is that Willian is much more mature, and has already plenty of Champions League experience and has played in a strong European league for years.
"Chelsea wanted to sign Willian this summer for €20m (£16m), but we turned them down. They went for Hazard for over €30m (£24m) instead. The fact remains that we do not want to sell him."