Sancho has scored five goals and provided nine assists for the Bundesliga club so far this season, but this form has been overshadowed by two high-profile incidents.
The teenager was dropped for one match and fined £86,000 by Dortmund after returning late from duty with England in October.
And he was then hauled off after just 36 minutes of Dortmund’s 4-0 defeat to rivals Bayern Munich earlier this month.
His manager Lucien Favre then publicly humiliated Sancho by saying he wasn’t injured and his performance wasn’t good enough.
These events have left Sancho feeling ‘humiliated, scapegoated and unprotected by his employers’ according to the Athletic.
His camp claim the youngster is being ‘unfairly used to shoulder much of the blame’ for Dortmund’s inconsistent start to the season.
They currently sit sixth in the Bundesliga, five points off leaders Borussia Monchengladbach and were forced to fight back from three goals down to draw with lowly Paderborn on Friday night.
Sancho started that comeback with a goal two minutes after half-time and also supplied the assist for a stoppage time equaliser scored by Marco Reus.
However, these good performances are being lost amid negative headlines, with his camp reportedly deeming his early substitution against Bayern and the subsequent comments by his manager as disgraceful.
The Athletic report that Barcelona, Liverpool, Manchester United and Real Madrid remain interested in the 19-year-old, but neither Sancho or his advisors have made any suggestion as to where or when his next move will be.