(Reuters) - Top seeds Angelique Kerber and Karolina Pliskova reached the Miami Open quarter-finals while French Open champion Garbine Muguruza retired from her match with Caroline Wozniacki after dropping the first set. German Kerber, the top seed, cruised by Japanese qualifier Risa Ozaki 6-2 6-2 while Czech second seed Pliskova beat 15th-seeded compatriot Barbora Strycova 6-1 6-4. Kerber was barely tested in her 62-minute match during which she displayed a great arsenal of shots and was all over her opponents' serve. Sixth seed Muguruza took a medical timeout after dropping the first set 7-6(1) to Wozniacki after feeling dizzy and decided she was unable to continue against the Dane. With the win, Wozniacki advanced to sixth quarter-final in seven 2017 events.

Source: The Star March 27, 2017 21:11 UTC