Naomi Osaka Overpowers Katerina Siniakova in US Open Clash

Naomi Osaka steadied herself, then stormed through.

The two-time US Open champion survived a wild second-set lapse before overpowering Katerina Siniakova 6-2 5-7 6-1 in New York, booking a third-round meeting with Belgian 23rd seed Elise Mertens.

Osaka arrived on Arthur Ashe Stadium as only she can: a walk-on that felt like a runway. After her first-round tribute to NBA icon Allen Iverson, the four-time major winner returned on Thursday in a crisp white dress, delicately embroidered with tennis racquets. The look was cool, composed, precise — and for half an hour, her tennis matched it.

She ripped through the opening set in 30 minutes, dictating from the baseline, serving cleanly, and pinning Siniakova back with heavy, flat drives. At 4-2 up in the second set by the one-hour mark, the 2018 and 2020 champion seemed to be cruising towards a routine straight-sets win.

Then the match turned messy.

What followed was a run of four consecutive breaks of serve, a sequence that dragged the contest into chaos. Serving at 5-3 for the match, Osaka’s rhythm deserted her. The 13th seed’s consistency dropped sharply, and Siniakova — the world’s top-ranked doubles player but a dangerous singles opponent on her day — pounced.

Osaka sprayed errors, 20 of her 29 unforced mistakes coming in that second set alone. The forehand that had carved open the court began to misfire. Siniakova, suddenly liberated, stepped inside the baseline, redirected pace, and snatched the set 7-5, turning a near-certain defeat into a live contest.

Osaka walked off for a bathroom break, not to escape but to reset.

When she returned, the mood shifted. The Japanese 28-year-old tightened her margins, rediscovered her first serve, and reclaimed control of the rallies. The third set belonged to her from the opening game. She broke early, then again, and this time she did not blink.

Siniakova’s resistance faded under the renewed weight of Osaka’s ball-striking. The former world number one surged through six of the last seven games, closing out the decider 6-1 to seal victory in two hours and two minutes.

“The match was definitely really tough. I just felt like I was a little bit too hard on myself after opportunities in the second set,” Osaka told the Arthur Ashe crowd. “I took the bathroom break, regrouped a little, came back and just tried to have no regrets.”

The scoreline will show a three-set win and a place in the third round. The performance hinted at something more important: a champion rediscovering not just her power, but her poise, with Mertens now standing between her and a deeper run in New York.