The 28-year-old is in the final year of his contract and has given no indication that he will sign a new deal with the club.
Manchester United have a decision to make on whether to sell him this summer or take a chance of agreeing on a new contract next season but risk losing him on a free transfer next year.
Paris Saint-Germain have a serious interest in the midfielder and are expected to soon hold talks with Manchester United over reaching an agreement.
And Manchester United are putting in contingency plans and are sounding out replacements for Pogba across Europe.
The Premier League giants are aware that they could lose the Frenchman in the ongoing summer transfer window.
The Red Devils would prefer to see him sign a new deal but are working to make sure that they have a replacement lined up if Pogba leaves.
Manchester United are also interested in bringing in a defensive midfielder and have continued to monitor Kieran Trippier.
But any more arrivals at Old Trafford will be dependent on the club selling players such as Jesse Lingard or Pogba.
