The Western & Southern Open quarterfinals finished on Friday and the semifinal pairings are Angelique Kerber vs. Simona Halep and Karolina Pliskova vs. Garbine Muguruza.
Second seed Angelique Kerber battled back to beat ninth seed Carla Suarez Navarro and closed in on the No.1 WTA ranking, now being just two wins away from ending Serena Williams' 183-week reign. After a sloppy one set and a half, Kerber took charge midway through the second set and lost just one game after going 4-2 up. Even in the worst moments, Kerber was confident in her ability to fight back and a 4-6 6-3 6-0 victory brought her into the big semis.