United were heavily linked with a move for the England star though missed a deadline from Dortmund while also being reluctant to pay the £108m fee that the Bundesliga giants wanted.
There is still a belief that the Red Devils will go in for Sancho again, either in January or next summer.
Borussia Dortmund CEO Hans-Joachim Watzke has suggested that United be smarter about their business following a difficult transfer window though has hinted that a deal for Sancho could still be done.
Without mentioning United by name, he said: “[They] misjudged the situation. We had a clear line and will continue to do so next summer.
“In this industry, you can never say that a player is completely unsellable.
“I heard and read everywhere in the spring that Sancho was gone. But he's here. We had an agreement with him.”
Having failed to secure a deal for Sancho, United were left scrambling around on transfer deadline day.
Ole Gunnar Solskjaer made four signings as the window closed and was rewarded with a 4-1 win over Newcastle in the first game after the market.
Solskjaer said: “We have so many games coming up and you pick a team that you think is going to get a result in that game.
Get the latest transfer news straight into your inbox!
Want to be on the ball with all of the latest football news?
Well then sign up for the brilliant new Daily Star Sport email newsletter!
From the latest transfer news to the agenda-setting stories, get it all in your email inbox.
How do you sign up?
It only takes a matter of seconds.
Simply type your email address into the box at the top of this article and hit 'subscribe'.
And that's it, job done. You'll receive an email with all of the top news stories every single morning.
You can find out more information on our email newsletter on this link here.
“You look at the opposition and you look at yourself and what is the best balance and I thought we found the right one today.
“There were some very good performances from the ones who came in since last time and the ones who came off the bench did really well.
“The ones who stayed on the bench as well - they were our supporters tonight so there was a great attitude and team spirit.”