The second round of the US Open gets underway today at the USTA Billie Jean King National Tennis Center in Flushing Meadows Corona Park.

Home favorite Gauff, who is still only 19 years old, is set for a battle of the teens with 16-year-old Mirra Andreeva. This comes two years after the New York slam saw an all-teenage final between Emma Raducanu and Leylah Fernandez.

Gauff has had a highly successful time on the North American swing, winning both the DC Open and the Cincinnati Open this month. The American is back on Arthur Ashe today after defeating Laura Siegemund in a dramatic match 3-6, 6-2, 6-4 in the opening round.

Meanwhile, Andreeva, who only made her WTA Tour debut in 2022, drew attention at Wimbledon last month after she made the fourth round, making her the youngest player to reach this milestone since Gauff did the same at 15 years old in 2019. Along the way, the Russian defeated tenth seed Barbora Krejcikova and twenty-second seed Anastasia Potapova before losing to 25th seed Madison Keys.

The two have faced each other once before in the third round of the 2023 French Open, where Gauff emerged victorious 6-7(5), 6-1, 6-1.

Meanwhile, 23-time Grand Slam champion Djokovic and world No. 1 Iga Swiatek are back on the courts today for their second-round matches.

The Serb has already re-claimed the world No. 1 position in the ATP Ranking, taking it back from defending US Open champion Carlos Alcaraz after winning his first-round match against Alexandre Muller. Now, he will return to Arthur Ashe to face Alcaraz’s compatriot, world No. 76 Bernabe Zapata Miralles.

The Spaniard will be hoping to pull off a shock victory to progress through to the third round of the New York Slam for the first time, but given Djokovic’s dominant display in his opening match, defeating Muller 6-0, 6-2, 6-3, this is looking like an unlikely feat.

The highest-ranked player on the court in Louis Armstrong Stadium will be defending women’s singles champion Swiatek, who achieved a commanding victory over Rebecca Peterson in the first round. She is set to face Australia’s Daria Saville, who is currently ranked at World No. 179.

This is Saville’s third time in the second round of the US Open, and like Miralles, it is unlikely that she will make her third-round debut at this year’s tournament against an on-form Swiatek, who leads their head-to-head 1-0.

The day's final match on Arthur Ashe will feature two-time Wimbledon champion Petra Kvitova facing off against former world No. 1 Caroline Wozniacki.

The latter is playing just her third tournament since she returned to the sport earlier this month after three and a half years away. Both women are 33 years old and this match will mark the resumption of a long-lasting sporting rivalry between the two that was halted with Wozniacki’s retirement in 2020.

They have played each other a total of 14 times in the past, including at least once every year between 2009 and 2018. Kvitova leads their head-to-head 8-6, and as the eleventh seed she is predicted to extend this lead at Flushing Meadows. The Czech made a strong start in her first round, blasting 34 winners compared to 18 unforced errors.

Wozniacki also won her opening round in straight sets, but had twice as many unforced errors as Kvitova, meaning she will need to clean up her game slightly if she wants to progress through to the third round.

Also on Arthur Ashe will be tenth seed Frances Tiafoe, who will have the home-crowd support firmly behind him as he faces off against world No. 58 Sebastien Ofner.

Over on Court 17, one American will be playing in every match throughout the day.

Taylor Townsend will be up first against nineteenth seed Beatriz Haddad-Maia, who ousted American player and 2017 US Open champion Sloane Stephens in the first round. Townsend entered the tournament at the last minute after Simona Halep was withdrawn and made a strong start, defeating Varvara Gracheva in straight sets.

28th seed Christopher Eubanks will be up next, playing against France’s Benjamin Bonzi. Following him will be fourteenth seed Tommy Paul against Roman Safiullin, before Jennifer Brady, who came back this summer after injuries forced her out of the sport for two years, goes up against 24th seed Magda Linette.

Elsewhere, fourth seed Elena Rybakina will face Ajla Tomljanovic on Louis Armstrong. They will follow 2020 US Open champion Dominic Thiem's match against home player Ben Shelton. Another American will close out the day on the second most important court, as ninth seed Taylor Fritz faces Peruvian player Juan Pablo Varillas.

Over on Grandstand, seventh seed Stefanos Tsitsipas will face qualifier Dominic Stricker, followed by eighteenth seed Victoria Azarenka's match against Zhu Lin. Next up will be fifth seed Casper Ruud, who will play against Zhizhen Zhang.