Coming off her title win in Montreal last week, No.4 seed Agnieszka Radwanska breezed past Sabine Lisicki 6-1, 6-1 in just 52 minutes.
Radwanska broke the German six times en route to the win, solidifying her spot in the Western & Southern Open quarterfinals for the third time in her career. She’ll face former World No.1 Caroline Wozniacki for the 9th time Friday afternoon.
Ana Ivanovic survived a three set battle with Svetlana Kuznetsova, defeating the Russian 6-2, 2-6, 6-3. Ivanovic, who leads the WTA in 2014 match wins with 45, reaches the quarterfinals for the second time. She meets 19-year old Elina Svitolina for the third time this year.
Svitolina kept her hot streak going, ousting No.15 seed Carla Suarez Navarro 4-6, 6-4, 6-4 Thursday. The Ukrainian, who upset No.3 seed and two-time Wimbledon champion Petra Kvitova in the second round, will look to better her 0-4 record against Ivanovic Friday night.
Former champion Maria Sharapova survived Anastasia Pavlyuchenkova 6-4, 7-6(2) in the round of 16 Thursday.
Sharapova, who faced Pavlyuchenkova for the third time this year, broke the fellow Russian five times and won 73% of her first service points in the two hour match.
The former World No.1 now owns a 12-2 record at Cincinnati and will meet new World No.2 Simona Halep in the quarterfinals, in a rematch of the 2014 French Open Final.
Simona Halep was the first woman to book a spot in the quarters after defeating Lucie Safarova 6-4, 7-5 Thursday morning.
Halep, who is making her third main draw appearance in Cincinnati, broke the Czech lefty four times during their 90 minute meeting.
Serena Williams rolled through to the quarterfinals with a 6-2, 6-2 win over Flavia Pennetta.
The World No.1 served up eight aces and broke the Italian five times in their hour long match. With this win, Serena betters her 2014 record against Top 20 opponents to 15-1, her only loss coming at the Australian Open to Ana Ivanovic.
When asked about how she feels after a rough first half of the year, Serena said, “I have a lot more confidence. I feel more relaxed. Overall feel a lot better. I'm playing a lot better.”
The top seed is through to the quarterfinals in Cincinnati for the fourth time in her career and is set to meet No.8 seed Jelena Jankovic, in a rematch of the 2008 US Open Final. Jankovic defeated young American Sloane Stephens in the round of 16 for the second year in a row at the W&S Open.