Shakhtar Donetsk boss wants Chelsea to regret undervaluing Willian
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Lucescu accused the European champions of making a derisory bid for the Brazilian playmaker, who the Blues tried to buy in January and reportedly attempted to sign again this summer.
Shakhtar were said to have snubbed a £16.7 million offer at the start of 2012 and one in the region of £27million after Chelsea were crowned champions of Europe.
Lucescu has admitted that he had given Willian assurances he could move to Chelsea this summer, but left him bitterly disappointed after snubbing the offers.
The coach said: "Willian was far away from Chelsea. They didn't even get anywhere near to our requirements, having done nothing to make my promises to Willian come true.
"Speaking specifically about the amounts, they officially offered the sum for which we had bought him young. I would really like them to highly appreciate his true value [in the game] and realise that they made a big mistake.''
André Villas-Boas was the man in charge at Stamford Bridge when Chelsea’s initial attempts were knocked-back, and the Portuguese coach has also tried to sign Willian for new club Tottenham Hotspur.
Willian, who has made it clear he wants to leave Shakhtar, has revealed that choosing between the two Premier League clubs would be difficult, should they attempt to sign him again in January.
The 24-year-old said: "Choosing between the two clubs would be difficult. I don’t know.
"Chelsea is Chelsea. They are a great team, with amazing players and are the champions of Europe.
"I would love to play for either of those clubs. But my mind remains at Shakhtar, and I’ll do my best to get the win against Chelsea."
The Brazilian also revealed that he has been in touch with Villas-Boas since the Ukranian champions rejected the offers earlier this year.
He added: "Tottenham is a big club and it has a good person in charge. Andre Villas-Boas wanted to bring me to Chelsea and also tried at Tottenham.
"He always sends me messages. We are always in touch, and he has become a friend, for sure."
Tonight’s Champions League clash between Chelsea and Shakhtar at the Donbass Arena is scheduled to kick-off at 19:45 BST.