Wolfsburg manager Dieter Hecking has warned Chelsea that he will not be held to ransom over a possible move for Kevin De Bruyne.
The midfielder has struggled to establish himself at Stamford Bridge after impressing during a season-long loan deal with Werder Bremen last term.
De Bruyne's lack of game time has even led team-mate Eden Hazard to claim that he would be better off leaving Chelsea in search of regular football with Wolfsburg making no secret of their interest.
"If it works, then it'll work," Dieter Hecking told Kicker. "The fact that we have to pay a certain price for a player like De Bruyne is normal but we do not want to pay astronomical prices."
Sporting director Klaus Allofs, though admitted the club are keen to complete a deal as soon as possible with the squad set to travel to Abu Dhabi for a mid-season training break.
"We have our ideas and a price range in mind, but any further can cannot go," Allofs added. "If one is interested in a player, you want to make it fast."