Dortmund coach Lucien Favre wasn't delighted with Jadon Sancho after the club's 3 - 1 defeat to Barcelona.
The 19-year-old has scored the only goal for the German club's side in the 77th minute of the game.
However, after the game, they sit on the 3rd place of the Champions League Group F and should prepare for their final group fixture against Slavia Prague on December 10.
Favre thinks the England international wasn't focused enough for the game against Barcelona.
After the match the Dortmund boss told:
"I explained to him [why he wasn’t starting] before the game. I told him it was a really difficult game here in Barcelona, and we needed players that were really focused and that went on to the pitch really focused."
Sancho is linked with the move to Manchester United and Liverpool during January transfer window.