The 2013 Australian Open had been without its fair share of upsets before Day 10. But on Wednesday, one of the tournament's top favorites went down in stunning fashion as Serena Williams bowed out after a three-set loss to rising American star Sloane Stephens.
Although many believed Stephens would contend and make things interesting, very few (if any) expected the No. 29 seed to actually advance to the semis.
Of course, Stephens and Williams weren't the only players in action on Day 10.
With the semifinals all set to begin on Day 11, it's time you got caught up on the latest happenings Down Under.
Serena Falls to Up-and-Coming American
Serena Williams was upset at the quarterfinal stage on Day 10, losing in three sets to 29th-seeded American Sloane Stephens (who becomes the first American woman younger than Williams to beat her). The 19-year-old played a superb game after dropping the first set, and she would win the next two in impressive fashion, 3-6, 7-5, 6-4.
Williams was not herself, however, and it showed after the first set. She was struggling with her back as the match wore on, but she still had every chance to win (especially serving while already up 4-3 in the third set).
Make no mistake, Serena didn't lose the match; Stephens won it.
She tied Williams with 23 winners for the match and took advantage of her break-point chances. Despite being just 19 years old in her first Aussie Open quarterfinal, Stephens kept her cool in those big moments. A less mentally tough player may have folded.
Federer, Murray Advance to Semifinal
Roger Federer will return to the Australian Open semifinal for the 10th straight year after outlasting seventh-seeded Frenchman Jo-Wilfried Tsonga in a five-setter on Day 10, with scores of 7-6 (7-4), 4-6, 7-6 (7-4), 3-6, 6-3.
Fed's victory was highlighted by his second serve success. He won 56 percent of his second-serve points compared to Tsonga's success rate of 47 percent. Something else to watch for moving forward will be Fed's net play. He won 42 of his 58 opportunities at the net while Tsonga on saw 50 net-point chances and only hit 33.
Meanwhile, in the earlier men's quarterfinal on Day 10, third-seeded Andy Murray disposed of unseeded Frenchman Jeremy Chardy in under two hours, 6-4, 6-1, 6-2. Murray smashed 32 winners and committed just 20 unforced errors for the match.
The reigning U.S. Open champion, Murray has yet to drop a single set Down Under. He is headed to the Aussie Open semifinals for the fourth straight year and will face Federer on Day 12.
Azarenka Cruises Past Quarterfinal Stage
Women's No. 1 seed and defending Australian Open champion Victoria Azarenka was impressive yet again on Day 10, easily defeating unseeded Russian and past Slam champion Svetlana Kuznetsova in straight sets, 7-5, 6-1.
Azarenka is headed back to the Aussie Open semis for the second straight year but for just the second time in her career as well.
The 23-year-old Belarusian's victory was keyed by her strong service games and her even better effort in her return games. She put 75 percent of her first serves into the box and won 55 percent of her receiving points.
Azarenka caught a bit of a break with Sloane Stephens winning on Day 10, as she'll be pitted against the American teenager in the semis rather than a 15-time Grand Slam champion in Serena Williams.
Men's Quarterfinal Scores: Day 10
Roger Federer (2) defeated Jo-Wilfried Tsonga (7); 7-6 (7-4), 4-6, 7-6 (7-4), 3-6, 6-3
Andy Murray (3) defeated Jeremy Chardy; 6-4, 6-1, 6-2
Women's Quarterfinal Scores: Day 10
Victoria Azarenka (1) defeated Svetlana Kuznetsova; 7-5, 6-1
Sloane Stephens (29) defeated Serena Williams (3); 3-6, 7-5, 6-4
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