Djokovic upset by Wawrinka in Aussie quarterfinals

Stanislas Wawrinka of Switzerland gestures between points as he plays Novak Djokovic of Serbia during their quarterfinal at the Australian Open tennis championship in Melbourne, Australia, Tuesday. AP

MELBOURNE, Australia—Three-time defending champion Novak Djokovic has been upset in a dramatic five-setter against Stan Wawrinka in the Australian Open quarterfinals, ending his 25-match winning streak at Melbourne Park.

Wawrinka lost 14 straight head-to-heads to Djokovic before Tuesday night’s 2-6, 6-4, 6-2, 3-6, 9-7 win in four hours on Rod Laver Arena.

Djokovic beat Wawrinka 12-10 in the fifth set in a 5-hour, 2-minute fourth-rounder here last year, and also edged him in five sets in the United States Open semifinals.

This time, it was Wawrinka’s turn. He’s into the semifinals at a major for just the second time.

On the women’s side, 19-year-old Canadian Eugenie Bouchard reached the semifinals in her first trip to the Australian Open, beating Ana Ivanovic 7-5, 5-7, 6-2 to set up a showdown with two-time finalist Li Na.