No, he didn't. A certain individual's brother went on a rant on the internet against the manager because the latter dared to drop his little bro from the first team for two whole games. Now, the little bro could have said his older brother not to do such a thing because it would cause a turmoil within the club. In fact both of them are clever enough to know that action brings reaction but they still went on with it. The manager eventually gave the player a place in the starting xi again but the latter looked less fit than a 50 yo beer addict. When the manager said that he will trust him again, the little bro told the manager "feck it, i don't feel like it". And we're talking about a player who, on the merit of just being a good talent, he's stripped of any competition for his role on the pitch. He gets the vip treatment, the club doesn't buy a new LB after him breaking his leg and fat thighs and siblings talking shite on the internet is what he gives the club in return.
The other player is known for hitting the physio's room at whatever opportunity he can find. When the manager told him to toughen up and help the team get through the Chelsea game, he put in a performance that would make Sunday league footballers apologize a thousand times to their teammates.
These two were thrown under the bus and rightly so. For two reasons: Firstly, because there are players in the squad like Mata and Blind, who were perceived as goners by almost anyone who has an opinion about MUFC. The same bad manager told them that they can seek another destination where they will get first team football or they can stay at the club and fight for playing time by knowing that they're not the type of footballers he likes. Right now, they're both in the manager's plans and two of our best performers on the pitch. Why? Maybe because they chose not to bitch and moan all the time but get on with their job.
Secondly, disasters like the ones you all soothsayers predict often happen when the manager falls out with world class players who are vital for their teams. In our squad, if you take away De Gea, there's not a single player whose departure a club of our size and wealth can't sustain. From the two biggest prospects one (Rashford) is getting lots of playing time while the other (Martial) is getting more starts in "easier" games in order to shake off his personal issues.