The PSG boss, who succeeded Thomas Tuchel earlier this month, already wants the French club to axe five players in order to make a move for Tottenham star Dele Alli in the January window.
According to Spanish newspaper Diario AS, the former Spurs manager is 'willing' to let Mbappe leave the French capital should PSG make a double swoop for Manchester City striker Sergio Aguero and Barcelona captain Lionel Messi.
Both Aguero, 32, and Messi, 33, will be free agents in the summer and can choose to sign pre-contract agreements with clubs abroad this month.
PSG wouldn't need to pay a transfer fee for either Aguero or Messi in the summer, but the club would still need to cover both players' wages.
And AS claims that Mbappe's departure to Liverpool or Los Blancos would allow PSG to pay for Messi's wages.
However, Pochettino's deal-breaker means that both Aguero and Messi must sign for PSG before Mbappe can leave the club in the summer.
Mbappe, who was signed from Monaco for a staggering £165.7m, will be out of contract next summer.
Featured Image Credit: PA
Chosen for YouChosen for You
Most Read StoriesMost Read