NEW YORK (AP) — Naomi Osaka smiled before her U.S. Open showdown against Coco Gauff began Monday — and after it ended. Between points, Osaka patted her left thigh and quietly told herself, almost in a whisper: “Come on. Come on.”

Once the ball was in play, Osaka's strokes were loud and on-target, producing the sort of confident, consistent and power-swinging tennis that carried her to four Grand Slam titles and the No. 1 ranking.

In the biggest statement yet that she is back at the height of her game, and again a serious contender for the sport's highest honors, Osaka eliminated Gauff 6-3, 6-2 in Arthur Ashe Stadium to reach her first major quarterfinal in more than 4 1/2 years.

Osaka hasn't been to a Slam quarterfinal since the 2021 Australian Open

“This is kind of unchartered territo

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