British media reports said the United team bus had been held up in traffic on the way to Old Trafford and arrived only 45 minutes before kickoff of the Group H match, which was put back by five minutes.

UEFA said that disciplinary proceedings had been opened against the English Premier League side for "late team arrival" and "late kick-off".

Valencia were also charged over the late kickoff, along with "kit infringement" and the setting-off of fireworks by their supporters, UEFA said.

A fourth successive winless game increased the pressure on United manager Jose Mourinho who cut a deflated figure afterwards.