With Naomi Osaka retiring due to a lower back injury, Coco Gauff advanced to the China Open quarterfinals Tuesday.

Fourth seed Coco Gauff is through to the quarter-finals of the China Open after Japan 39;s Naomi Osaka was forced to retire ...

Naomi Osaka has updated concerned fans about her injury, after the former World No.1 retired from her China Open match ...

An injury stopped the Japanese's run at the China Open, but in the match lost against Coco, the Japanese showed glimpses of ...