JADON SANCHO is not '100 per cent' in the right headspace to perform for Borussia Dortmund, according to reports of discontent in the club's dressing room.
Manchester United unsuccessfully tried to sign the winger, 20, during the transfer window.
But it has been far from a perfect start to the season for Dortmund or Sancho.
Tuesday's 3-1 defeat to Lazio in the Champions League has led to widespread criticism of the squad.
In particular, Sancho was panned by Bild for not being totally focused on the Borussia cause this season.
The German newspaper adds that there are rumblings inside the dressing room over the player's lack of discipline.
Sancho landed himself in hot water with his national team bosses when breaking coronavirus restrictions days before meeting up with the squad.
Gareth Southgate dropped the forward for a friendly with Wales before he underwhelmed off the bench against Belgium and Denmark.
His club form has been little different, scoring only in the DFB-Pokal demolition of Duisburg having impressed so much last season.
New signing Thomas Meunier has also faced criticism for his impact in Dortmund, along with out-of-form winger Julian Brandt and coach Lucien Favre.
The Bundesliga side will need to turn things around quickly for Saturday's huge local derby against Schalke, with Zenit St Petersburg coming to Signal Iduna Park shortly after.
Manchester United are said to still fancy their chances of snapping up Sancho.
Although Borussia insist their hardline negotiating stance will continue next summer, when the youngster will have just a year left on his contract.
CEO Hans-Joachim Watzke said: "[United] misjudged the situation.
In this industry, you can never say that a player is completely unsellable.Hans-Joachim Watzke
"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."