Coco Gauff’s Former Coach Reacts As Naomi Osaka Dominates Alongside Jannik Sinner, Iga Świątek, and Others at US Open

Coco Gauff’s former coach, Brad Gilbert, recently shared his thoughts on Naomi Osaka, Jannik Sinner, Iga Świątek, and others’ dominating performances in their fourth-round matches at the 2025 US Open.

In addition to Osaka, Sinner, and Świątek, players like Amanda Anisimova, Lorenzo Musetti, and Alex de Minaur also secured impressive victories in the fourth round of the Grand Slam tournament.

What Did Brad Gilbert Say About Jannik Sinner, Iga Świątek, Naomi Osaka, and Others Dominating 4R Matches at US Open 2025?

Sinner, the top seed at the 2025 US Open, advanced to the fourth round after defeating Vít Kopřiva, Alexei Popyrin, and Denis Shapovalov. He faced Alexander Bublik in the fourth round, winning in straight sets with a score of 6-1, 6-1, 6-1 in 81 minutes.

Meanwhile, Świątek, seeded second at the New York Major, progressed to the fourth round by defeating Emiliana Arango, Suzan Lamens, and Anna Kalinskaya. In the fourth round, she defeated Ekaterina Alexandrova with a score of 6-3, 6-1.

Osaka, seeded 23rd, eliminated Greet Minnen, Hailey Baptiste, and Daria Kasatkina before prevailing over third seed Gauff in the fourth round with a score of 6-3, 6-2.

Reflecting on the dominant performances during the fourth-round matches on Monday, September 1, 2025, coach Gilbert took to social media to describe the singles matches as “one-way traffic.”

“wow were the singles matches today one ☝️ way traffic, honestly can’t remember a 4th rd like this at any major,” Gilbert posted on X (formerly known as Twitter).

wow were the singles matches today one ☝️ way traffic, honestly can’t remember a 4th rd like this at any major

— Brad Gilbert (@bgtennisnation) September 2, 2025

Sinner is the defending champion at the 2025 US Open, having won last year’s title by defeating Taylor Fritz in the final. Świątek claimed her first title at Flushing Meadows in 2022, triumphing over Ons Jabeur in the final. Osaka has won two titles in New York, in 2018 and 2020, against Serena Williams and Victoria Azarenka, respectively.

Who Will Jannik Sinner, Iga Świątek, and Naomi Osaka Face at the 2025 US Open QF?

Sinner, Świątek, and Osaka have advanced to the quarterfinals of the 2025 US Open. The defending champion will face compatriot and 10th seed Lorenzo Musetti in the quarterfinals.

Sinner and Musetti have played each other twice on the ATP Tour, with the World No. 1 winning both matches. Their most recent encounter was in the quarterfinals of the 2023 Monte-Carlo Masters, which Sinner won 6-2, 6-2.

The winner of the upcoming quarterfinal match between Sinner and Musetti will advance to face either eighth seed Alex de Minaur or 25th seed Félix Auger-Aliassime in the semifinals.

Jannik Sinner: very good at tennis. pic.twitter.com/fkG3t88wQK

— US Open Tennis (@usopen) September 2, 2025

On the women’s side of the draw, Świątek is set to face eighth seed Amanda Anisimova in the quarterfinals of the 2025 US Open. The two have previously met only once on the WTA Tour, in the final of the 2025 Wimbledon Championships, where Świątek triumphed with a score of 6-0, 6-0. This victory marked the Pole’s first title at the London Major and her sixth overall Grand Slam title.

The winner of the quarterfinal match between Świątek and Anisimova will face either 11th seed Karolína Muchová or Osaka in the semifinals.

Another clinical outing from Swiatek as she get past Alexandrova in straight sets! pic.twitter.com/fuOWwUuEvG

— US Open Tennis (@usopen) September 1, 2025

Meanwhile, Osaka will compete against Muchová in the other quarterfinal match. They have faced each other four times on the WTA Tour, with each player winning twice. Their most recent encounter was in the second round of the 2025 Australian Open, where the former World No. 1 emerged victorious with a score of 1-6, 6-1, 6-3.

Naomi Osaka’s biggest win since⁉️

The two-time champion takes out world No.3 Gauff in straight sets, 6-3 6-2! pic.twitter.com/UoOOeywLD5

— US Open Tennis (@usopen) September 1, 2025

The winner of the quarterfinals match between Osaka and Muchová at Flushing Meadows will advance to face either Świątek or Anisimova in the semifinals.