Real Madrid superstar Cristiano Ronaldo has opened the lid on what exactly transpired in the dressing room at Manchester United when boss Sir Alex Ferguson dished out hairdryer treatment to his side.

Ronaldo was bought by Manchester United in the summer of 2003 following the sale of David Beckham to Real Madrid, after the English midfielder fell foul to the temper of Sir Alex.

Ronaldo blossomed in one of the greatest players of modern times during his time at Manchester United.

Ronaldo reveals ‘the hairdryer’

Ronaldo hailed his former boss’ ability to get the best out of the players because of his no-nonsense approach. Speaking ahead of the BBCa s upcoming documentary, a Sir Alex Ferguson: Secrets of Success,a which will be aired on October 11, Ronaldo was quoted saying by FourFourTwo:

“I remember sometimes when we do something bad or we lost some games he kicked the chairs and he kicked the boots, he kicked everything, the waters, the drinks.

“And hea s so red and, a F*** you, you should pass the ball, youa ‘ it was unbelievable but it was good – because we learn.”

Giggs, Ferdinand reveal how Ferguson’s fury motivated them

Ryan Giggs is now Louis van Gaal’s assistant coach after a hugely successful career as a player at the club. The Welshman revealed that Ferguson’s outbursts acted as an inspiration form him to do well on the pitch.

“I remember him having a go at me at half-time and I had the sort of attitude that ‘Right, I’ll show him’. And I played well in the second half, so then he quickly knew how I would respond to him losing his temper,” Giggs said.

“That followed me for the next 20 years, so it was a big mistake early on.”

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No one was immune to Ferguson’s temper, and Rio Ferdinand was just another star who suffered the hairdryer treatment from the Scot.

“We played Benfica away and I think we got beat,” he said. “We didna t play well and he was shouting at me and I thought I was one of the best players on the day.

“So I going back at him. And the problem is, which I failed to learn quickly, is that the more you shout at him, the louder he gets, and the more aggressive he gets, and the closer he gets to you.”