Osaka faces either USA 14th seed Madison Keys, the runner-up in 2017 or Spain's Carla Suarez Navarro.
Osaka, who was born in Japan but moved to the United States at age 3, was followed on Arthur Ashe Stadium by Kei Nishikori facing Marin Cilic in a men's quarterfinal. At her second major back, Wimbledon, she was the runner-up.
The Latvian's own serve was landing legally at a respectable 60% coming into the semi-final, but it dipped here and her reliance on placement over speed was exposed when Williams broke back in the fourth game, and again for 4-2.
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I wasn't putting forth my best performance. "He said he liked me", Kyrgios, who next plays Roger Federer , said with a laugh. Nick Kyrgios , of Australia, reacts against Pierre-Hugues Herbert, of France, during the second round of the U.S.
Breaks were at a premium in the first set, both players holding serve until Suarez Navarro cracked at a decisive moment in the 10th game. "Juan Martin is a great player everywhere, but the challenge of playing him on hard of course is even higher for me personally than playing against him on clay", said Nadal who will be playing in a seventh semi-fnal in NY. But she does cover the court incredibly well and is amongst the hardest players in the sport to hit through.
Kei Nishikori and Naomi Osaka made history at the US Open on Wednesday, September 5, when they became the first Japanese man and woman to reach the semifinals at the same Grand Slam. So I know how to volley, but I usually come [to the net] just to shake hands.
Williams first won at the US Open in 1999 and has won the tournament six times.
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The deal was done even before the Pakistan Tehreek-e-Insaf (PTI) government assumed power, he added. Pompeo is expected to raise on his visit is counterterrorism in the region.
"I think it's because of Kei", she said, holding her hands apart to show how much bigger Nishikori is in Japan, from where her family moved to NY when she was 3. I'm really looking forward to the rest of the year and next year.
But after labouring through the heat in her previous match, Tsurenko said she was sick Wednesday, waking up with a sore throat and not breathing well. In her third-round match, she was even quicker, dominating Aliaksandra Sasnovich, 6-0, 6-0, in 50 minutes. She recovered to win in three sets, with her opponent accusing her of acting after the match.
She pushed some balls a few feet past the baseline, often failing to make Osaka do anything special to win a point and finishing with 31 unforced errors. "It was a tough battle and it will give me good confidence, even though I don't remember a lot of it", said the 28-year-old after getting revenge on Cilic in the quarter-finals. "I wasn't nervous before the match, but as soon as I got into the court, it was different".
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The incident was missed by both referee Willie Collum and his assistant Frank Connor. It's blatant....for me it's 100 per cent foul".
The Japanese stars both advanced to the semi-finals at Flushing Meadows on Thursday (AEST).