Sancho was heavily linked with a switch to United in the summer and autumn transfer window, with Ole Gunnar Solskjaer reportedly identifying him as a top target.
However, Dortmund’s £108million asking price proved too steep for the Red Devils in the current climate and his proposed move failed to materialise.
Since missing out on a return to England, Sancho has seen his form suffer for Lucien Favre’s side.
The 20-year-old is yet to find the back of the net in Bundesliga so far this season, meaning both Favre and sporting director Michael Zorc have publicly expressed their concerns over his struggles.
And now Sancho has opened up on his tough start to the 2020/21 campaign, admitting it has been a “hard situation” for him at Signal Iduna Park.
“I am just happy that I am playing,” he told DAZN.
“I have coaches and teammates that believe in me. Recently, it's been a hard situation for me. But it's all about how I come back and have performances like this [against Brugge].
“They will hopefully get me back to the top, how I was playing before."
While he is yet to break his Bundesliga duck, Sancho has impressed in the Champions League for Dortmund this season, scoring two goals in the competition so far.
His second came in their 3-0 win over Club Brugge on Tuesday, which saw him become the first Englishman to score a direct free-kick in the Champions League while playing for a foreign side since David Beckham for Real Madrid in 2005.
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After the victory, Favre said: “Of course, I'm really happy that he scored again. A very beautiful goal from a direct free-kick. We have a few players who can do that. He did it really, really well.
“His goal has relieved us. A two-goal cushion coming one minute from the break was important, that was good for all of us.”