What to Watch on Day 4 of the US Open

Day 4 at the US Open promises to be a blockbuster as second-round action kicks off with some of the biggest names in tennis taking the court. Novak Djokovic and Carlos Alcaraz look to continue their progress, while American fans will be cheering on 2024 runner-up Jessica Pegula. Women’s top seed and defending champ Aryna Sabalenka and 2021 champioon Emma Raducanu also face tough tests.

Ben Shelton

Djokovic’s Next Test

Four-time US Open champion Novak Djokovic, 38, survived a gritty first-round win over Learner Tien but admitted he struggled with fitness and recovery during long exchanges. “I don’t have any injury or anything. I just struggled a lot to stay in long exchanges and recover after points,” Djokovic said.

After two days of rest, Djokovic will face American qualifier Zachary Svajda on Wednesday. The Serbian, who hadn’t played since Wimbledon, is looking to find his rhythm and start building momentum in New York.

American Men in Action

Day 4 at Flushing Meadows will feature several big American vibes. 2024 finalist Taylor Fritz and No. 6 seed Ben Shelton will be on court, with Fritz facing a challenging opponent while Shelton takes on Pablo Carreno Busta.

Two-time US Open semifinalist Frances Tiafoe will meet qualifier Martin Damm, and Marcos Giron goes up against the man who toppled Daniil Medvedev, France’s Benjamin Bonzi. Overall, eight of the remaining 11 American men in the draw will be in action on Day 4.

A Big Day For Teens

Day 4 at the US Open will also spotlight the next generation, with several teenage players in action. Joao Fonseca, Mirra Andreeva, Iva Jovic, and Jakub Mensik will all take to the court, giving fans a glimpse of the sport’s rising stars and plenty of exciting young talent to watch in Flushing Meadows.

Philippine sensation Alexandra Eala and Indonesia’s Janice Tjen will also be back in action, each looking to make history for their countries. Eala, the first player from the Philippines to ever win a Grand Slam match faces Cristina Bucsa of Spain, while Indonesian star Tjen takes on 2021 champion Emma Raducanu.

Joao Fonseca overcomes a 7-6, 4-0 deficit in Cincinati, as Davidovich Fokina retires

Alejandro Davidovich Fokina

Alejandro Davidovich Fokina will not remember Toronto and Cincinnati for good. The Spaniard retired at both events, and his latest setback hurts the most!

Alejandro had a 7-6, 4-0, 30-0 advantage against Joao Fonseca in the second round in Cincinnati before dropping five straight games and retiring, propelling the young gun into the third round.

The more experienced player claimed a tight opener and provided two breaks at the beginning of the second set to forge a massive advantage. However, he lost pace and retired after dropping five games in a row.

They traded early breaks in the first set and served well after that for 4-4. Alejandro secured another break in game nine and served for the opener, only to suffer a break and keep his rival in contention. 

The Spaniard delivered a mini-break in the first point of the tie break and won all points on serve for 7-4 and a boost. Fonseca lost serve two times in a row at the beginning of the second set to find himself 4-0, 30-0 down. 

Alejandro Davidovich Fokina, Cincinnati 2025

Alejandro Davidovich Fokina, Cincinnati 2025© Stream screenshot

 

However, he started his comeback with a break in game five and delivered another two games later to reduce the gap. The young gun held at love for 4-4 and clinched his third straight break in game nine with a backhand down the line winner.

Davidovich Fokina ended the match at that moment, retiring for the second straight week and sending his rival over the top.

Lindsay Davenport highlights Joao Fonseca's main weakness

Andrey Rublev

After electrifying fans and insiders in the early months of this season – in which he won his first ATP title in Buenos Aires after defeating Andrey Rublev at the Australian Open – Joao Fonseca's level has drastically dropped in recent months and there has also been some criticism of the young Brazilian ace.

Many people expected brighter performances from him especially during the red clay season, but his run at the Wimbledon Championships was considered satisfactory taking into account that he has no experience on this surface.

Most experts were convinced that Joao could achieve a very brilliant result at the Toronto Masters 1000, a tournament that has suffered numerous forfeits among top players and has a draw quite open to potential surprises. However, the South American star's run in Ontario ended already in the first round against Tristan Schoolkate, who took advantage of his opponent's numerous ups and downs to achieve victory in two sets.

Fonseca has exited the Canadian Open 

The feeling is that Fonseca is feeling a bit from the pressure on his shoulders and is struggling to express his best tennis as he had managed to do in the first months of 2025.

Speaking on 'Tennis Channel', former WTA star Lindsay Davenport analyzed Joao's weaknesses in detail: “He really struggled with his return in the match. Yes, Schoolkate served well but there was no real problem-solving for Fonseca in that category. He just wasn’t able to get the rally in to start the point when he was receiving.

He now has two weeks until his next match, or about 12 days or so. So, it’ll be interesting to see if he goes and does a training block in south Florida. Maybe he goes back to Brazil for a little bit.

You’ve got to be able to manage an 18, almost 19-year-old’s mental game as well, and this has been a lot this year maybe.”

Fonseca's next tournament will be the Cincinnati Masters 1000, which should be very suitable for his game ahead of the US Open.