In just her third match since May’s French Open tournament, Naomi Osaka retired early with a lower back injury. The former World No. 1 was down 7–6 (4), 3–0 to Kaia Kanepi at the National ...

Two-time champion Naomi Osaka and fellow past U.S. Open winners Stan Wawrinka, Dominic Thiem and Bianca Andreescu were given wild cards Wednesday into this year's tournament. Osaka won the first ...