Aiming to secure her fourth consecutive match win for the first time since returning from maternity leave, Naomi Osaka struggled throughout her fourth-round match against Coco Gauff at the China Open and was forced to retire due to a lower back injury with the match tied at one set apiece.
Osaka had started strong, taking the opening set 6-3 and leading by a break in the second. However, the American fourth seed fought back, winning three consecutive games from 4-3 down to claim the second set 6-4.