NEW YORK :Four-times major champion Naomi Osaka powered into the U.S. Open fourth round on Saturday with a 6-0 4-6 6-3 win over 15th seed Daria Kasatkina to continue her best Grand Slam run since 2021. Osaka lit up Louis Armstrong Stadium in broad daylight, turning her third-round clash into a showcase of power and composure. The Japanese player dominated early, absorbed a brief second-set wobble, and closed out the win to set up a blockbuster fourth-round showdown with American third seed Coco