And Wolfsburg director of sport Klaus Allofs says he expects an offer to be placed this week.
"Of course we are expecting an attempt to be made in the coming days," Allofs said, according to sport1.de. "That has, at least, been signalled.
GETTY
Kevin De Bruyne appeared to say last night that he wanted to stay at Wolfsburg
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"An offer to Kevin, in terms of his salary, has already been made, and the figures are crazy.
"But overall I'm confident that Kevin will remain with us this season. The fact is - and this is 100 per cent certain - Kevin has a contract with us until 2019 and if at all possible, we don't want him to leave.
"Furthermore, we are not a club who needs transfer revenue. If an offer does come in, though, we will discuss it seriously because we cannot ignore the player's interests."