The second round of the US Open was dominated by heat (again), a controversial collapse and a former boxing champion allegedly stealing an ice cream.

Apparently when you’re Mike Tyson, the world is your private freezer.

“I was like, ‘Are you serious? Am I imagining this?’” the stunned worker told The New York Post.

“(Tyson) was like, ‘I feel like having an ice cream,’ and he just took it.”

The former heavyweight champ apparently opened up the freezer himself, and walked off, even as multiple staff yelled at him to pay.

One shop worker clearly knew when to pick his battles.

“What are you going to do, fight him? He’s Mike Tyson.”

Tyson’s publicist called the incident a “misunderstanding”.

“Yes – I got away with it.” Tyson posing after the ice cream incident. Photo: Getty

“He was being pulled in a lot of directions as his daughter, Milan, is a rising tennis star and huge fan of the sport … His host, [USTA national manager] David Slade, got the money from Mike and has made sure the bill has been taken care of,” she said.

Historic roof closure

As light rain began to fall during Rafael Nadal’s win over Andreas Seppi, organisers may have felt a twinge of excitement.

It was their first opportunity to use the stadium’s retractable roof – $150 million and 10years in the making.

The new roof will negate the need for timeouts during rain – an occurrence that plagues Wimbledon in England – and takes just seven minutes to close.

Nadal wasn’t overly impressed.

“I feel that the conditions are pretty similar when the roof is closed or open,” he said.

"It's impossible for me!" @RafaelNadal tries his best to hit the roof! 😂🎾😂🎾 #usopen pic.twitter.com/zs8XGLGivU

— US Open Tennis (@usopen) September 1, 2016

Konta collapses, then wins

Britain’s Johanna Konta (born in Australia) provided one of the scarier moments of the second round, collapsing on the baseline from heat stroke.

Konta was helped by concerned officials, who eventually led her to the sideline, where she spent 20 minutes recovering.

Konta said she was “hyperventilating” in the 32-degree heat. Photo: Getty

Her opponent, Bulgaria’s Tsvetana Pironkova, didn’t seem too happy when Konta later took a seven-minute bathroom break to change her clothes – before taking out the third set.

“It was controversial,” she said. “I had the momentum.”

“Today I am not very happy about the rules.”

Ryan Harrison was understandably pumped with his win. Photo: Getty

No. 120 upsets Raonic

The first major upset of the tournament was delivered by world number 120 Ryan Harrison, who knocked off big-serving powerhouse Milos Raonic.

Fifth-seeded Raonic was runner-up at Wimbledon, but fell to the American in a hotly-contested four-setter 6-7 (4-7) 7-5 7-5 6-1.

Duckworth gave Tsonga a run for his money. Photo: Getty

“This is a big win for me,” said Harrison astutely.

Duckworth fights gallantly

Australian wildcard entrant James Duckworth went down to Jo Wilfred Tsonga, but not before pushing the ninth seed to an impressive four sets.

The 24-year-old’s departure leave Nick Kyrgios as the only Australian man with a chance of breaking Australia’s 15-year Flushing Meadows drought.

Sam Stosur – the only Australian woman left – will be trying to break our women’s comparatively smaller drought of five years, after her win in 2011.