Rio Ferdinand has pin-pointed the unity among the Red Devils squad as a major reason for their success in a season where City have all too often been in the headlines with reports of training ground bust-ups and player dissent.
The latest incident came on Monday when James Milner showed his annoyance at being substituted during Roberto Mancini's side's 3-0 defeat at Liverpool and the United skipper believes 'sulks' have no part at Old Trafford.
"You don't see people coming off shaking their heads, or being disgruntled, or sitting on the bench in a sulk at United," said Rio Ferdinand.
"The moment you show a little bit of dissent like that, the manager isn't happy and he pulls rank and rightly so.
"He keeps people on their toes. People want to play here. You want to be here. You don't want to be part of any other squad and that's the way it is."
The England defender added: "It's just a respect for the club, the manager and the people who were here before you as well. I don't know (about other clubs), but it's the way it is here." (Source)