Chelsea assistant manager Ray Wilkins says the club's star players will not be leaving on the cheap if interested parties come knocking in January.
The future of Brazilian defender Alex has already come into question with the player reportedly unhappy at a lack of first-team football at Stamford Bridge.
While Chelsea have stated no player has formally submitted a transfer request, the likes of AC Milan and Sevilla have been linked with £10million moves for Alex when the transfer window re-opens next month.
Wilkins has not ruled out the possibility of players leaving The Blues in January, although he insists the prices involved would be 'lots and lots' of money.
"Nobody at the club has received a formal transfer request from Alex," Wilkins said on Sky Sports News.
"Just to kill it here and now I would say if anybody was to come in for any of our players in January, knowing the quality of players we have, it's going to cost them a lot of money.
"So if anybody out there is looking at some our players for the January transfer window then they are going to have to pay lots and lots of money."
When asked if Wilkins knew personally whether Alex has grown frustrated by his lack of first-team opportunities, he replied: "I haven't spoken to him.
"I don't know whether Felipe has had any dialogue with Alex so as far as that's concerned I wouldn't have a clue."