naomi osaka us open 2025 karolina muchova.

Naomi Osaka, of Japan, returns a shot against Coco Gauff, of the United States, during the fourth round of the US Open tennis championships, Monday, Sept. 1, 2025, in New York. (AP Photo/Kirsty Wigglesworth)

Naomi Osaka simply doesn’t lose when she gets to Grand Slam quarterfinals

Once Naomi Osaka is in the quarterfinals of a Grand Slam tournament, look out. For a while, it was getting there that was the problem. Right now, Osaka appears to be back at her best, and she most definitively is back at that stage of a major, getting ready to face Karolina Muchova at the U.S. Open on Wednesday for a spot in the semifinals. It’s the first time Osaka — who has been ranked No. 1 and now is seeded No. 23 — has made it this far at one of the four most important events in tennis since the Australian Open in early 2021. That was also the last time she won a Slam trophy.

Read More »