Why does Cristiano Ronaldo do his ‘Siu’ celebration, and what does it mean?

CRISTIANO RONALDO just keeps on delivering the goods wherever he plays and is off up and running at the World Cup.

Since returning to the Premier League last summer, Ronaldo had bailed Manchester United out a number of times with some crucial goals before a mutual termination of his contract.

The Portuguese smashed through the 20-goal barrier last season and that gave him more opportunities to perform his now infamous 'Siu' celebration, which is also on display at the World Cup this winter.

Why does Cristiano Ronaldo do his 'Siu' celebration?

Ronaldo's signature celebration has become a viral hit in recent seasons.

From school playgrounds to courts at the Australian Open, kids and athletes alike have been mimicking the Portuguese by throwing their arms out and yelling 'Siuuu' at the top of their lungs.

But it's certainly nothing new and has been used by Ronaldo during his time at Real Madrid and Juventus, as well as when scoring for Portugal.

In fact, it's almost a decade since Ronaldo first performed the celebration against Chelsea in its current form during a 2013 pre-season friendly.

And the United forward revealed when it came about as a way to feel more connected to the Real Madrid fanbase.

Speaking in 2019, he said: "I started to say ‘si’, it’s like ‘yes’, when I was in Real Madrid.

“When we would win, everyone would say ‘siiiii’ and so I started to say it. I don’t know why, it was natural.

“I was in the USA and we played against Chelsea and I don’t know where this is coming from, the celebration.

“I just scored the goal and it just came out. It was just natural, to be honest.

"Since that, I started to do it more often and I feel like the supporters and the fans see it and they’re like ‘Cristiano, siiiiiiuuuu’.

“I’m like ‘wow! People are reminded of me because of it!’

“So it’s good, and I’ll continue doing it like that.”

Over recent times, the trend has grown - and no more so than in Australia.

Andy Murray was left baffled by the crowd after his marathon victory over Nikoloz Basilashvili in the first round.

It sounded to the Scot like boos were raining down on him from the stands, but tennis fans took to Twitter to reveal it was people imitating Ronaldo's 'siuuu'.