Serena Williams pulls out of Miami Open, Naomi Osaka knocked out, Petra Kvitova wins
American Williams reached round three on Friday with victory over Sweden's Rebecca Peterson, only the seventh match she has completed in 2019. The 23-time Grand Slam winner was set to face Wang Qiang in the last 32 but the Chinese 27-year-old now gets a bye. World number one Naomi Osaka suffered a shock three-set defeat by Taiwan's Hsieh Su-wei in their third-round tie. Williams said she was "disappointed to withdraw from the Miami Open due to a left knee injury". The 37-year-old has now withdrawn from two consecutive WTA events, following her retirement from last week's tournament in Indian Wells with a viral illness. Williams last claimed the Miami title in 2015, with her last Grand Slam win coming at the 2017 Australian Open, moving her one behind Margaret Court's record of 24 Grand Slam singles titles. "I hope to be back next year to play at this one-of-a-kind tournament in front of the incredible fans here in Miami," she said. ...