Man Utd legend called out Sir Alex Ferguson in front of entire changing room after substitution cost them game

Manchester United legend Rio Ferdinand once called out Sir Alex Ferguson in front of the entire dressing room after believing his substitution cost them the game.

Ferdinand was one of Ferguson's key lieutenants throughout most of his 12-year stay at the club between 2002 and 2014, making over 450 appearances and winning 14 trophies at Old Trafford.

You can watch the clip below.

He explained: "He made a substitution in the game that I didn't agree with. He made a substitution, and I was out on the pitch like, 'What are you doing?'

"We're winning 1-0 at the time. They came back, scored, and scored a winner late on.

"After the game, I remember walking off the pitch, I was screaming and going nuts in the tunnel.

"I came in [the dressing room], I remember it being quite quiet. But I was lost in my own mind. I remember Gary Neville holding my arm and going, 'Rio, stop. You ain't going to win this one, stop'. I was saying, 'You f***ing know, you know!"

"And I went in early the next morning and went to his office to apologise.

"He went again and went nuts, seriously. 'How dare you, in front of the team, question me and the staff'. I said, 'I still believe what I said was right, but the timing, I should have waited until you and me were alone'."