The Italy international has informed PSG sports chief, Antero Henrique, he wants to leave Paris this summer.
Barcelona are in talks with PSG over a price for the 24-year-old midfielder this week, but face competition from England.
According to TMW, the Blues and Red Devils have made contact with Donati di Campli, Verratti’s agent, and are now preparing offers for PSG’s consideration.
Barcelona have made a €75 million bid – which was rejected by PSG. The Parisians insist Verratti will not leave for less than €100 million this summer.