Naomi Osaka has pulled out of the upcoming WTA 250 event in Osaka, Japan as her injury woes continue. The former world No. 1 was forced to retire from her China Open clash with Coco Gauff last week.

Naomi Osaka has withdrawn from the Japan Open due to a back injury, placing in doubt whether she will play again this season.

Former world number one Naomi Osaka has pulled out of the Japan Open due to a back injury that forced her retirement from the China Open last week, organisers said on Monday. The 26-year-old was forced off court in the second set of her last-16 match at the China Open in Beijing after struggling with a lower back problem against eventual champion Coco Gauff.

In October, there are two WTA tournaments held in Japan, and Osaka hoped to attend both. The first one is the Japan Championships, also called the Kinoshita Group Japan Open for sponsorship reasons, which is a WTA 250 event running from October 14th to 20th.

Tennis phenom Coco Gauff helped her opponent, Naomi Osaka, off the tennis court after a back injury forced Osaka to forfeit the match.

Former world No. 1 Naomi Osaka has pulled out of the Japan Open due to a back injury that forced her retirement from the China Open last week, organizers said on Monday.

The 26-year-old former world number one looked in good touch as she recorded three wins at the China Open in Beijing last week. But in her last-16 match, against eventual champion Coco Gauff, Osaka retired at the end of the second set because of a back injury.