Mbappe has increasingly been linked with a switch to Liverpool in recent weeks, with Jurgen Klopp even admitting the club would love to land the Frenchman.
Klopp conceded it might be impossible for any side to buy Mbappe, with Paris Saint-Germain paying £165.7million for the 20-year-old two years ago.
Mbappe has only got better since his move to PSG and El Desmarque claim Liverpool have switched their attentions to Sancho.
The Borussia Dortmund star is a top target of United’s and the Red Devils are set to make a formal approach for Sancho in January.
Klopp does not want the pass up the chance to sign Sancho, who has already decided to leave Dortmund at the end of the season.