Paris Saint-Germain believe Kylian Mbappe has already agreed to join Real Madrid on a free transfer next summer.
Mbappe was sent a letter by PSG on Monday making it clear he would be sold this summer unless he agrees to extend his contract before the end of this month.
If he does not extend, PSG will sell him as quickly as possible to the highest bidder - and they do not care where he goes.
There will be no emotion and any potential transfer would be purely transactional.
In the past it has been thought that PSG would prefer not do business with Real Madrid, but if Mbappe does not extend his contract, they will sell him to anyone who can afford to buy him.
The asking price is likely to be about £150m.
In Monday's letter, PSG told Mbappe his decision not to extend his contract has caused the club enormous harm.
They urge him to extend his contract "to help the club that has helped you and your family".
