BREAKING NEWS: Naomi Osaka has withdrawn from the 2019 Shiseido WTA Finals Shenzhen because of a right shoulder injury and her place in the Red Group will be taken by alternate Kiki Bertens of the Netherlands.
The 22-year-old Osaka edged Petra Kvitova in her first round-robin match on Sunday, extending her winning streak to 11 matches after clinching two Asian Swing titles (the Toray Pan Pacific Open and the China Open), but the Japanese two-time Grand Slam champion has now pulled out of the lucrative tournament on the day she was scheduled to play world No.