Pogba returned to pre-season training this week and revealed to staff and team-mates he wants to be sold to Barcelona.
Marcos Rojo has been widely linked with a move away from Old Trafford, despite signing a new and improved deal until at least 2021 just a matter of months ago.
In an attempt to lure the midfielder to Camp Nou before the close of transfer window, the Catalan giants have also tasked Pogba's agent Mino Raiola to facilitate the deal as fast as possible.
Despite the fact that United's "not for sale" stance has been widely reported, it hasn't been enough to completely kill off speculation that Pogba might still be on his way.
Jose Mourinho wants Pogba back at Old Trafford and is hopeful he can replicate his form on the worldwide stage for United.
However, United could rekindle their hopes of signing World Cup star Harry Maguire, with Leicester closing in on two centre-backs late in the window to safeguard themselves against losing their England worldwide.
According to an ESPN report, the 25-year-old French global has become "unsettled" at Manchester United, in large part due to public criticism he received from manager Jose Mourinho over the summer.
BST: Manchester United legend Wayne Rooney, now at MLS club DC United, has said he believes Jose Mourinho needs "maybe another signing or two" to launch a Premier league title challenge. "You have to speak to Manchester United".
Will he be able to convince Ed Woodward to let him leave?
But Pogba has struggled to find a consistent role at United and it will be interesting to see if Mourinho takes a leaf out of Deschamps' book and asks less of him in terms of attacking support for his team's front line. Pogba was underperforming and Mourinho benched him in crucial games over the course of the last season.
The Old Trafford side have been in a long, hard pursuit of Tottenham centre-back Toby Alderweireld and look set to finalise the signing ahead of Thursday's transfer deadline.