Yet Dortmund chiefs have a 'gentleman's agreement' that will allow Sancho to leave in the coming weeks, with their eagerness to plug a financial gap created by losses incurred during the Covid-19 pandemic adding to their eagerness to do a deal with United now.
Dortmund are determined to do all they can to hang on to star striker Erling Haaland, despite interest from all of Europe's leading clubs for the Norway striker.
Yet they are ready to do a deal for Sancho and it appears United have a clear run at signing the 21-year-old, after it emerged he only wants to make a move to United.
Chelsea have been linked with an effort to disrupt United's plans to sign Sancho, yet the former Manchester City academy star has set his heart on a move to United and his advisers are doing all they can to get the deal over the line.
United striker Marcus Rashford is a close friend of Sancho's and he posted an image training with his pal on the England squad on Thursday evening, fuelling speculation that they could soon be playing for the same club side.
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While there is an expectation that the fee for Sancho will be 'significantly less' than the €120million fee from last year, reports in Germany suggest Dortmund are looking to insert a series of add-ons into the contract linked to appearances the player's success at Old Trafford.