Nikola Bartunkova wins again, Naomi Osaka ousted at China Open

After stunning second-ranked Aryna Sabalenka in straight sets in the third round of the China Open on Sunday, 34th-ranked Nikola Bartunkova's run continues in Beijing.

Bartunkova defeated Sinja Kraus 6-0, 4-6, 6-3 on Tuesday to advance to the quarterfinals.

Bartunkova's victory sets up an all-Czech matchup against seventh-seeded Karolina Muchova, who overcame a second set scare to knock out 12-seed Naomi Osaka 7-5, 1-6, 7-6 (7) in just under three hours. This will be the first meeting between Bartunkova and Muchova.