The LaLiga winners are reportedly “considering a January loan move” for the 23-year-old, as reported by SPORT.
United boss Erik ten Hag and Sancho are at odds after Sancho was benched for the team’s 3-1 loss to Arsenal before the international break.
He took the issue to social media, where he claimed he was being set up as a “scapegoat.”
The £73 million signing has been put on indefinite hold, and Ten Hag has said he is unsure if he will play for him again.
He is no longer training with the first team and is instead required to work on his own until the problem is fixed.
Sancho is rumored to have a potential exit in January, with Barca “keeping a close eye on his situation.”