It's believed a number of players in the dressing room were unhappy with Mourinho's dressing down after last weekend's defeat to Watford.
“I'm not condoning this happening every week but there is nothing wrong if a manager publicly criticises someone now and again to get a reaction.
“Managers aren't allowed to say anything bad about players now, not even if their criticism is valid, in case they get upset.
“I couldn't believe someone chose to inform a newspaper on Shaw's behalf that England's left-back was unhappy at the way Mourinho spoke about him.
“I was equally amazed to read a report that other players were 'shocked' by some of his words behind closed doors.
“These players represent Manchester United, a club where you have to win. They haven't done much winning for three years but they have become good at whining."