Former Manchester United striker Louis Saha has revealed how Cristiano Ronaldo was once brought to tears after an argument with one of the club's biggest stars at the time.
Ronaldo joined the Red Devils from Sporting Lisbon in 2003 as an 18-year-old and played alongside the likes of Ryan Giggs, Paul Scholes, Roy Keane, Rio Ferdinand and Ruud van Nistelrooy.
While there were reports that Van Nistlerooy's departure in 2006 to Real Madrid was down to Ronaldo's presence, Saha revealed an argument between the pair left the Portuguese winger in tears.
"Ruud had that kind of ego: he wanted all the passes," Saha told FourFourTwo.
"And sometimes, for the development of Cristiano Ronaldo and Wayne Rooney, it was difficult for the manager to deal with.
"Did Ruud make Ronaldo cry? Yeah, there were stories because I think they ended up in an argument at the moment when Cristiano's father had passed away, so it wasn't the right moment.
"Things like that happen when two players have lots of spirit, but I'm sure Ruud regrets some of his words.
"Cristiano was just an animal. I don't know if you can say that he was a human! You could see, from when he was 18 or 19, that this guy was not normal.
"These players who have all the ability recognise that it's also about working harder than anyone – not just talent.
"The top seeds in tennis don't hit the ball better or have better technique; no, they work harder than anyone, and Cristiano did that."