For many years, Manchester United dominated the Premier League.
Under Sir Alex Ferguson, the Red Devils won the top-flight 13 times in 20 seasons, before the Scot eventually retired.
And during that time, they had some incredible players.
Peter Schmeichel, Roy Keane, Paul Scholes, Ryan Giggs, David Beckham, Wayne Rooney and Cristiano Ronaldo to name but a few.
And with Ferguson managing that kind of talent, it’s probably not too surprising that United were so incredible.
But Ferguson’s judgment wasn’t always spot on when signing players.
For every Jaap Stam, there’s a Bebe. For every Ronaldo, there’s an Anderson.
But the two biggest flops during the Ferguson era were probably Eric Djemba-Djemba and Kleberson.
The two midfielders joined a world-class team and just struggled to adapt to life in Manchester.
But it seems one man didn’t exactly make life easy for them.
And there’s no prizes for guessing who… A certain Roy Keane.
“In the dressing room, he [Keane] was a good guy. He was very affectionate," Djemba-Djemba has told The Sun.
“But on the pitch…. If you had a gun, you’d want to shoot him. He’d insult you, he’d say anything and everything.
“As soon as the game was finished, he was a different person. I preferred Keane in the dressing room rather than on the pitch. He was like that because he wanted to win.
“Sometimes I’d wear a diamond earring and Keane would say to me, ‘What is this?’ So before I got to the dressing room I removed it because I didn’t want him to see it.
“I remember he used to shout at Kleberson, who was a very quiet guy who never spoke and was always laughing.
"Keane would always shout at him, ‘Wake up, you’re not in Brazil now on the Copacabana. Run!’
“I remember Rio Ferdinand was always laughing at Keane when he was shouting in the dressing room."
Poor old Kleberson.
But that’s typical Keane.
The Irishman was a leader both on and off the pitch and, if certain players weren’t performing, he wouldn’t be scared to let them know.
And it seems he certainly let Djemba-Djemba and Kleberson know that their standards were slipping.