It appears that even Cristiano Ronaldo wasn't immune to Sir Alex Ferguson's infamous hairdryer treatement.

The former Manchester United manager was known to lose his temper in the dressing room, and in the BBC's upcoming documentary 'Sir Alex Ferguson: Secrets of Success', which will be aired at 10.30pm on October 11, Ronaldo revealed the full extent of the Scot's wrath.

"I remember sometimes when we do something bad or we lost some games he kick the chairs and he kick the boots, he kick everything, the waters, the drinks, and he’s so red and ‘f**k you, you should pass the ball you," said the Real Madrid forward.

"it was unbelievable but it was good - because we learn."