Paris Saint-Germain are reportedly yet to respond to Real Madrid's second offer to sign Kylian Mbappe this summer.
An opening bid worth around £137m was rejected, but the La Liga giants have since given the Parisian outfit an ultimatum as they have tabled a final offer worth £145.6m.
Mbappe has entered the final 12 months of his contract at the Parc des Princes, and with the Frenchman yet to agree terms for a new deal, PSG are at risk of losing the 22-year-old for free next summer, if they are unable to sell him.
According to Marca, PSG have been given a 6pm deadline on Monday to respond to Real Madrid's latest bid.
If an agreement cannot be reached before this deadline, then Los Blancos are prepared to cancel plans to complete the transfer in this window and wait until January to negotiate a pre-contract agreement to sign the player in the summer of 2022.
Mbappe started and scored a brace in PSG's 2-0 victory away at Reims on Sunday, increasing his goals tally for the club to 135 in 175 appearances across all competitions.