What will the future hold?
Most fans are happy to see Sancho back.
“Several players have come back over the years, but it usually doesn't work out,” said Nina Tillman of Dortmund's popular fan site Schwartzgelb.com.
“But we thought this was a good idea. We feel that Jadon is comfortable with us and will help the club.”
“It would be a shame if he couldn't get back to his old self. It would be great if he got a chance to shine here again.”
Whether that will happen is a matter of debate.
In a perfect world, Dortmund would keep the player. That's what club executives want. However, the deal that brought Sancho back made economic sense.
If he is to continue on loan next season or make a permanent transfer, major compromises will be required on all fronts. Dortmund cannot match the salary Sancho earns at United. But United, under intense pressure to comply with the Premier League's profit and sustainability regulations, cannot simply part with an asset of that size.
It is clear that Sancho has no future at Old Trafford if Ten Hag remains manager. However, there is a chance he won't, opening the door for him to return to United even if he remains interested in playing elsewhere next season.
Meanwhile, Dortmund are heading into the Champions League semi-finals.
They may be outsiders, but Dortmund should not be taken lightly after coming through a group that included PSG, AC Milan and Newcastle, before eliminating Atletico Madrid in the quarter-finals.
Ironically, the club will have the prize money to spend on Sancho's return as they lift the trophy they won in 1997 with a team that included former Scotland midfielder Paul Lambert.
It's a fascinating subplot in a strange story.
When Sancho left Dortmund, winning the Champions League was one of his goals. Little did he know that his first decent shot at this award would be back where his senior professional career began.
