Coco Gauff gets past injured Naomi Osaka in Beijing

(Photo credit: Robert Deutsch-Imagn Images)
Fourth-seeded Coco Gauff advanced to the quarterfinals of the China Open on Tuesday when Japan's Naomi Osaka retired before the third set in Beijing with a lower back injury.

Osaka won the first set 6-3 and was up a break leading 4-3 in the second set before losing the final three games and promptly retiring.

"I'm sorry," Gauff said to Osaka after sharing a hug at midcourt. "I