In Melbourne, Serena Williams walked out for her fourth-round match against Simona Halep, but then had to reverse back inside the tunnel when the announcer called out Halep's name. I took my chances and I won.
"I think I'm playing a little bit better than I was previous year, so I'm looking forward to it".
It's also daunting for the opponents challenging for the titles that Williams has long dominated.
Williams' surprising departure later in the day scuttled what would have been a much-anticipated rematch against Osaka, who beat her in the chaotic U.S. Open final last September. "She literally played her best tennis ever on those shots". Then I said, "OK, let's try to hold my serve, then we will see what's going to happen".
Williams, the tournament's 16th seed, had been up 5-1 in the deciding third set against Karolina Pliskova and looked on course to cruise to victory.
Down 5-2 in the third set, Pliskova was a 9-1 underdog ($100 bet wins $900) to Serena.
"It's a good learning experience to know the next time that I have match point [it's] like, "OK, just go bananas on it". But she would go on to stave off the next three match points.
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This is a good thing, even though I know he wants to play a full schedule, and I hope we see more of it as the year rolls on. Mickelson finished with five birdies - draining a six-footer at 15th and a 10-footer at 16th to regain a share of the lead.
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Krzyzewski also shares insight into how he handles the "demons" in success with balance and commitment to moving forward. At that point, Virginia was shooting 63.1 percent from the field, including an eye-popping 19-of-23 in the paint.
In addition to reaching the semifinals, Osaka needs to equal or better Petra Kvitova's performance in the tournament to stay in contention for the No. 1 spot.
"That's why she's No.1", Williams said.
Dominant Williams overshadowed them all and is an overwhelming favourite to win an eighth Australian title, with defending champion Caroline Wozniacki and second seed Angelique Kerber already out.
Serena Williams appeared to turn her ankle on match point against Karolina Pliskova. The owner of the most feared and respected serve in women's tennis was broken for a third time in a row at 5-all, and Pliskova was on her way.
She got a little bit shaky in the end. "Like, I am happy that I'm here, but at the same time, I want to keep going", said Osaka, who never had been past the fourth round at the Australian Open.
Svitolina was a quarter-finalist at Melbourne Park past year and has set her sights high after her breakthrough in winning the WTA Finals Singapore, targeting a Grand Slam win and world number one.