Kylian Mbappe

Whether a move will be sanctioned will depend very much on finances, with Mbappe expected to cost at least £150million, while Le Parisien reports that his wages are around £315,000 a week.

Such a paypacket would break the salary structure at Liverpool, where top earners such as Mohamed Salah and Thiago Alcantara are said to be on around £200,000 per week.

The funds involved would also pose a problem for United, with executive vice-chairman Ed Woodward having baulked at Borussia Dortmund’s £108m valuation of Jadon Sancho during the summer.

Liverpool wages: Thiago tops list with Salah as Mane, Firmino and Jota salaries emerge

Earlier this year, Mbappe said of Liverpool: “This season, Liverpool have been a machine in the Premier League.

“They have made winning look easy but the truth is that it is never easy.

“To be as ruthless as they have been would come from lots of hard work in training and from having a very good manager.”