Australian tennis player vexed by audience chanting Ronaldo's "Siuu"

During his Australian Open first-round triumph,

Nick Kyrgios

described the audience to a zoo, with spectators imitating a popular

Cristiano Ronaldo

celebration at nearly every point. 

Cries of "Siuu" could be heard during most of the home favorite's straight-sets win against

Liam Broady

, his debut match since a Laver Cup loss to Stefanos Tsitsipas in September. 

The yells appeared to be a parody of Manchester United star

Cristiano Ronaldo

's famed scoring celebration.

Similar instances occurred during

Andy Murray

's five-set victory over

Nikoloz Basilashvili

, when the five-time finalist won his first game at the Melbourne Open since 2017. 

Many onlookers were perplexed by the rowdy audiences, wondering if Murray and Kyrgios were being booed on the court, although both players received much support. 

The 26-year-old tennis player later acknowledged that hearing the commotion from the stands was not surprising for him, but he was stunned at how long it lasted. 

"It's just a stupid, f***, I can't believe they did it so much," he said after his 6-4 6-4 6-3 victory on John Cain Arena. "They were doing some Ronaldo thing. Ronaldo does it every time he scores.

"It's like... I thought they were going to do it for like 10 minutes. They did it for two and a half hours, like, every point. I don't know why. It was a zoo out there."

Murray questioned whether the crowd was turning against him during his epic 6-1 3-6 6-4 6-7 (5-7) 6-4 triumph because he had been targeted during his Monday training session.

"Initially, I thought it was [booing] because there were some people booing during my practice yesterday," he said. "I have no idea what for! 

"But then, after a few times, it was like, no, they're doing that, I think it's like 'Siuu' or something that Ronaldo does when he scores. And, yeah, it was incredibly irritating!"

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