Whatever Jose Mourinho said to his players at half time clearly did not work.
Valencia scored their second of the game after a comical own goal from Manchester United's Phil Jones.
There was confusion between Jones and goalkeeper Romero, as a clear lack of communication led to the own goal.
Chelsea loanee Michy Batshuayi was played in, with Phil Jones shielding the ball, however he could clearly feel the pressure.
Jones decided to play the ball back to his goalkeeper, however hadn't realised that Romero had left his six yard box and was at the edge of the penalty area.
Jones inadvertently slid and diverted the ball past his goalkeeper and in the the empty goal.