The midfielder has yet to ink a new deal and Man United are scared the 28-year-old could run down his contract and leave for a free next summer.
However, reports from the Sun say United are preparing a monster deal for the Frenchman that'll make him the highest paid player in the Premier League—a move United are hoping will make Pogba stay for the long-term.
It is understood United want to hold the Frenchman down for a few more years but attempts to get him to sign have been difficult so far. As a result, they've triggered a 12-month extension in his current contract.
Pogba, who arrived back from Juventus in 2016 for a then world record £89 million transfer fee currently earns £300,000-per-week as wages. But United are willing to offer Pogba a whopping £400,000-per-week for him to stay another five years.
This would make the Frenchman the highest paid player in the Premier League and see him topple David De Gea as United's top earner.
However, United are also determined not to let the Frenchman leave for free next season should he decide to run down his current contract.
Pogba has been linked with a move away from Manchester in the past.
Last summer, Juventus and Real Madrid were reportedly hot on his heels. However, both saw their interests in the midfielder knocked down after United placed a staggering £150 million on their star man. This time around, that value is expected to drop significantly to at least £50 million and United could be tempted to sell if Pogba refuses to sign as they don't want him to leave for nothing.
Meanwhile, United have reportedly agreed personal terms with long-term target Jadon Sancho and are few steps away from signing the Dortmund winger.