Manchester United were forced to send staff to Paul Pogba’s house to wake the 24-year-old up.
The club’s £89million record signing failed to appear at Carrington for a warm-down session following United’s thrilling 3-1 win at Arsenal the previous evening.
Info gathered revealed that the France midfielder didn’t respond to phone calls summoning him to the warm-down session.
Pogba returned to action after a three-match suspension on Wednesday when United suffered a shock Carabao Cup defeat at Bristol City.
Afterwards, Mourinho questioned the attitude of some of his players, saying: ‘For some of us it was just one more day in the office – probably a day that some of them don’t even want to come to the office.’
There is no suggestion that Pogba was one of the players Mourinho was referring to, and the former Juventus star has been sorely missed during his ban. He will be a key figure as United try to cut Manchester City’s 11-point lead at the top of the table over Christmas.
Mourinho’s side only have six rest days between playing Leicester on Saturday, Burnley on Tuesday, Southampton next Saturday and Everton on New Year’s Day.
Mourinho said: ‘There is a really big gap between some clubs and other clubs. There are clearly the ones that are really privileged, there is clearly another group that is really punished by the decisions of the calendar, and there is another group in the middle. I know I would never be in the top group, but we would like to be in the middle group.’