Sir Alex Ferguson - I Only Had FOUR World Class Players at Manchester United. See Their Names...

Sir Alex Ferguson has claimed only four of his Manchester United players could be truly regarded as 'world-class'.

Ferguson confirmed Cristiano Ronaldo as the greatest player he worked with at Old Trafford.

He also put Eric Cantona, Ryan Giggs and Paul Scholes among the elite, as he reflected on his career in his new book 'Leading'.

Ferguson said: 'If you read the papers or listen to the television commentators, we seem to be awash with 'world-class' footballers.

Photos: Cristiano Ronaldo Unveils His CR7 Underwear Collection

Campaign photos from footballer, Cristiano Ronaldo's sexy underwear shoot for the fourth collection of his CR7 Underwear collection. More photos below...

Cristiano Ronaldo dresses up as a homeless man & pranks Madrid with his football skills | Video/Photos

The homeless man walking with that dog is the world's best and one of the richest footballers - Cristiano Ronaldo - but as he walked on the streets of Madrid over the weekend, nobody paid him any attention - because nobody knew it was him. He was disguised in fake beard, hair and fat suit.

He took to the streets of Madrid and showed off some of his football skills. Occasionally, passers-by will stop to watch his impressive football skills, especially when he replicates Ronaldo's trade-mark step-overs, but no one knew it was Ronaldo himself. Then he reveals himself. What follows is sweet.

Real Madrid Star, Cristiano Ronaldo Says He Doesn't Give A F**k About FIFA

Cristiano Ronaldo has made it a habit of walking out of interviews if he's asked the wrong question.

The Ballon d'Or holder did that again when he was asked about the current FIFA in an interview.

"I don't care about FIFA, Qatar, I don't give a f***," Ronaldo said before adding, "speak about FIFA, come on..." before walking out of the interview.