Speaking on his YouTube podcast, Rio Ferdinand said: "I think the only way Jadon Sancho goes back to Manchester United is if Erik ten Hag is not there.
"From a disciplinary situation stand point, they can't really undermine the manager. Without an unless they change it, or add a little bit of nuance to it, I don't think they will undermine the manager in that way.
"The people at Man United, behind the scenes, will be asking questions, INEOS, 'why has that performance not been in a red shirt?'"
Sancho and Borussia Dortmund are through to the Champions League final after beating Paris Saint-Germain 2–0 on aggregate.
The Man United loanee is set to return to Old Trafford at the end of the season but a decision on his future will be made after the June 1 game.