JAKARTA – World number one and defending champion Jannik Sinner from Italy defeated Alexander Bublik to reach the quarterfinals of the 2025 US Open.

Sinner put on a dominant display, needing just one hour and 21 minutes to defeat the Kazakhstani tennis player 6-1, 6-1, 6-1 on Tuesday, September 2, 2025.

This was the second-fastest victory in men's singles at the 2025 US Open. Previously, Tomas Machac's victory over Luca Nardi in the first round was just one minute faster.

Bublik is one of only two players to defeat Sinner this season. However, the defending champion put on a nearly flawless performance to prevent Bublik from defeating him again.

"We know each other very well. We've had some tough matches, especially this year. So, we know each other well," Sinner said, as reported by the ATP website.

Sinner previously lost to Bublik in Halle, Germany, in June 2025, a warm-up match for the 2025 Wimbledon Grand Slam. However, that event was held on grass courts.

It's a different story to defeat the 24-year-old on hard courts. Sinner is currently considered one of the most unstoppable players on hard courts.

"I want to thank everyone who came and supported me. This is a very special moment for us players. So, thank you very much," said Sinner.

This latest result extends Sinner, who has won the last two editions of the Australian Open, his winning streak at the hard court Grand Slam to 25 matches.

Sinner will next face compatriot Lorenzo Musetti, the 10th seed, in the final Grand Slam event on the annual tour calendar.


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