MELBOURNE, Australia (AP) -- The Latest on the Australian Open (all times local):
Top-ranked Ash Barty is into the semifinals, keeping alive her chances of being the first Australian to win her national championship in 42 years.
Barty beat two-time Wimbledon champion Petra Kvitova 7-6 (6), 6-2 on Rod Laver Arena and will next play Sofia Kenin.
Barty was helped when Kvitova double-faulted on break point in the seventh game of the second set, and Barty held serve in the next after saving two break points. She clinched the match with an ace.
Kenin beat Ons Jabeur in the first quarterfinal earlier on the same court.
The last Australian to win the national title was Chris O'Neil in 1978.
Next up on Rod Laver Arena is a men's quarterfinal between Roger Federer and Tennys Sandgren.
Sofia Kenin is the first player into the Australian Open semifinals. The 21-year-old American beat Ons Jabeur 6-4, 6-4 in the first match of the day on Rod Laver Arena to reach the semifinals at a major for the first time.
Kenin's best run at a major was to the fourth round at last year's French Open.
She beat 15-year-old Coco Gauff in the fourth round, when she made only nine unforced errors in winning the second and third sets.
Against Jabeur, Kenin made the key break in the second set in the seventh game after saving three break points of her own in the previous game.
Jabeur was the first Arab woman to make the quarterfinals at a major.
Next up on Rod Laver Arena is another women's quarterfinal between top-ranked and French Open champion Ash Barty and two-time Wimbledon winner Petra Kvitova.
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