Real Madrid have given PSG until Sunday to respond to their latest offer for Kylian Mbappe, according to reports.
The France international is out of contract at the Parc des Princes at the end of the season.
Although the World Cup winner will be available for nothing in 10 months' time, Madrid are going all out to acquire him before the transfer window closes at 11pm BST on Tuesday.
Madrid have informed their European rivals that they are not willing to spend more than £163m on a player who will be a free agent in less than a year.
The Ligue 1 leaders have already turned down two bids from Madrid, the latest of which was rumoured to be worth £146m plus £8.5m in add-ons.
It would make little economic sense for PSG to reject a bid of £163m, but the club is not looking at this proposed deal solely in financial terms.
Losing Mbappe to Madrid would represent a major blow to the club's standing, which seems to be the main reason why they have resisted the Spanish side's overtures up to now.
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