Raonic dropped the opening game but then rebounded by winning the next eight.
After winning the WTA Finals in Singapore late last year, the 24-year-old looks poised to take the next step. Then he tossed it.
For the second straight match Osaka had to battle back from a set down to progress at Melbourne Park.
At her first opportunity in the next game, she broke the 17th-seeded Keys, the runner-up at the 2017 US Open and a semifinalist or better at three of the past five majors. "I had to stay very strong".
Hsieh, 33, finally began to tire and the younger player was in control as she closed out the match.
He will face Croat Borna Coric or Frenchman Lucas Pouille next.
She saved one with an ace and managed to run Hsieh around to fend off another but hit a wild forehand over her opponent's head on the third to go down a set.
Osaka closed out the showdown with a blinding forehand down the line, her 51st victor of the match.
"I could tell she was quite upset".
Japanese tennis rising star Naomi Osaka advanced her first Australian Open quarterfinal after defeating Anastasija Sevastova of Latvia in women's singles event at the Rod Laver Arena on Monday. "I decided I wanted to do really well too". "I was just trying to fight and trying to earn another chance.and I got it and was really happy I could step up". Also, I have been watching all these kids. when Tsitsipas beat [Roger] Federer.
The Ukrainian, who lost her previous two meetings with the American, struggled in the second as Keys stepped up her aggression, coming to the net and adding extra venom to her returns.
"US Open champion" by seeing off Anastasija Sevastova in three sets.
The 2016 U.S. Open runner-up and No. 7 seed eliminated 27th-seeded Camila Giorgi 6-4, 3-6, 6-2.
Osaka will be concentrating more now on Svitolina.
Svitolina was a quarterfinalist at Melbourne Park past year and has set her sights high after her breakthrough in Singapore, targeting a Grand Slam win and world No. 1.
For a quarter of an hour on Day 8, Svitolina served and served, and served, tossing the ball into the sun, in a desperate bid to hold a game in the third set against Keys.
Right from the start, Yastremska appeared a bit jittery, missing 9 of 10 first serves and double-faulting three times while getting broken in each of her opening two service games.More news: MSNBC, CNN Go From ‘Bombshell’ to ‘Frustrated’ After Mueller Disputes BuzzFeed Report
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