MELBOURNE, Australia (AP) — Victoria Azarenka's 18-match winning streak at the Australian Open ended in an upset 6-1, 5-7, 6-0 quarterfinal loss to Agnieszka Radwanska on Wednesday to continue the flow of stars tumbling out of the season's first major.

Fifth-seeded Radwanska ended a streak of three consecutive quarterfinal defeats at the Australian Open with a stunning display of versatile shot-making that confused the big-hitting defending champion.

She next plays No. 20 Dominika Cibulkova, who won the last eight games in a one-hour, 6-3, 6-0 quarterfinal rout of No. 11-seeded Simona Halep. Azarenka's loss followed the fourth-round exits of top-ranked Serena Williams and Maria Sharapova and leaves 2011 French Open champion Li Na as the only major winner remaining in the women's draw.

Li will play 19-year-old Canadian Eugenie Bouchard in the other semifinal.


Singles – women's quarterfinals

Dominika Cibulkova (20), Slovakia, def. Simona Halep (11), Romania, 6-3, 6-0.

Agnieszka Radwanska (5), Poland, def. Victoria Azarenka (2), Belarus, 6-1, 5-7, 6-0.

Doubles – men's quarterfinals

Michael Llodra and Nicolas Mahut (13), France, def. Leander Paes, India, and Radek Stepanek (5), Czech Republic, 6-2, 7-6 (4).