No. 23 seed Naomi Osaka advanced to a Grand Slam quarterfinal for the first time since 2021 by routing No. 3 Coco Gauff 6-3, 6-2 in the U.S. Open round of 16 on Monday in New York.

Osaka won 15 of her 16 first-serve points (93.8 percent) and needed just 64 minutes to finish off her dismantling of Gauff, the 2023 winner at the Billie Jean King Center.

"I was super locked-in," Osaka said in her on-court interview. "I felt like everyone wanted to watch a really great match and I hope that's what you got."

Osaka, 27, will next face No. 11 Karolina Muchova of the Czech Republic. Muchova was a 6-3, 6-7 (0), 6-3 winner over No. 27 Marta Kostyuk of Ukraine.

It was no contest from the outset as Osaka reached the quarterfinals at a major for the fifth time in her career. She won each of the othe

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