Erik ten Hag told his Manchester United players there was no excuse for giving up a two-goal lead against Aston Villa, branding the second-half collapse as 'unacceptable'.
United led 2-0 at half-time but failed to win for the first time in four games on tour as Calum Chambers headed a last-minute equaliser.
Ten Hag refused to blame the bad weather or poor pitch, saying: 'We had a lot of movement behind the defending line, scored two great goals so we were 2-0 up at half-time and then our focus dropped.
'It can be that the guys are tired but that's not an excuse.