Jose Mourinho blamed the police for Manchester United's late arrival to their Champions League meeting with Valencia on Tuesday night.
Mourinho claimed that United were "refused" an escort by Greater Manchester Police, which led to their journey from the Lowry Hotel taking 45 minutes longer than usual.
After consultations with Uefa and Slavko Vincic, the match referee, the original 8.00pm kick-off was delayed by five minutes.
Having left the Lowry at 6.00pm, United only arrived at Old Trafford at 7.16pm and began warming up some 25 minutes later.
"We left the hotel at six o'clock, hoping that 30 minutes would be enough, which normally is," Mourinho explained. "But this time the police refused to do an escort, so we come by ourselves.
"We took from the Lowry Hotel, 75 minutes. Uefa were nice, the referee was nice to allow us to start the game five minutes later because we at least need half an hour to be prepared.
"But it was not a problem with the club organisation. We anticipate everything that it could be dangerous, in the sense of arriving late, but we were informed the police refused an escort."
United's night ended with a drab goalless draw that will do little to alleviate the pressure on Mourinho after four games without victory.
Having taken four points from their opening two games, Mourinho's side now face a doubleheader against Group H's top seeds Juventus.
