The 19-year-old has blossomed in Germany and is now a full England international with 11 caps and destined for a place in Gareth Southgate’s Euro 2020 squad.
The attacker has scored 15 goals this season with 17 assists from his 29 appearances, on the back of 13 goals and 19 assists last season for BVB.
According to Sky in Germany reporter Jesco von Eichmann, Sancho, who is under contract until 2022, will leave this summer and Manchester United are in the hunt for the former Manchester City man.
Eichmann says Dortmund director Michael Zorc just smiled at him when he asked him today whether he had received a bid for the player.
Sky in Germany reporter Jesco von Eichmann said: “He will leave Dortmund this summer, that’s for sure.
“It’s not clear to which club he will change.
“Manchester United is one of the big clubs that are interested, that I’ve heard.
“Michael Zorc, the director of Dortmund, said last week in an interview that he hasn’t had an offer for Jadon Sancho yet. Today, I asked him again, and he just smiled!
“There will be some offers for Sancho in the future. He is improving. He was very tired at the end of the first part of the season but now he’s very fit and performing very good. He improved his behaviour.
“He had some trouble coming in on time – he came more or less late every day. He changed that and he is really improving.
“He is working hard in training so (head coach) Lucien Favre is pretty happy with him right now.
“I guess he thought over some things in the winter break and now he is working like the professional that he wasn’t before.”
Liverpool are also understood to be interested, but only this week the Daily Mirror claimed that United were battling hard to try and tempt Sancho back to English football, as they believe they can edge out Chelsea in what has become a two-way fight for the £120m-rated star.