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Follow Mail Sport’s live blog for the latest results and game-by-game updates from the Australian Open, as Alex de Minaur, Jannik Sinner and Iga Swiatek are in quarter-final action.

Major concerns grow over Jannik Sinner’s physical condition


Another controversial technological moment

Sinner: “I wasn’t feeling very well”
“I wasn’t feeling very good,” said the 23-year-old. ‘I think we saw that today I was struggling physically. I knew today was going to be very, very difficult, playing against a tough opponent but also playing against myself a little bit.
At least I felt a little better when I got back on the court. I felt like the face looked a little better, the color had come back a little. The doctor gave me some medicines.
I already spoke with the doctor before entering the field. I had a little checkup.
Yeah, it was kind of helpful. At least I felt a little better when I got back on the court. I felt like the face looked a little better, the color had come back a little.
So, yeah, that helped, for sure. You know, they are difficult conditions. You know, it was hot yesterday. Today it was hot again.
You know, every player struggles a little bit. When you’re not where you want to be from a health standpoint, it’s also even harder, but it helped, yes. He gave him a little medication and then he didn’t get any better.

So what happened to Sinner?


Here comes De Minaur.


Has Katie Boulter left Australia?