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Cori "Coco" Gauff. Photo: Shi Tang/Getty Images

Cori "Coco" Gauff, the 15-year-old from Delray Beach, Fla., is heading to the 4th round at Wimbledon on Monday, the youngest woman to do so since a slightly younger 15-year-old Jennifer Capriati in 1991.

By the numbers: Gauff started the tournament ranked 313 in the world. After taking out five-time Wimbledon champion Venus Williams, 39, in the first round, 2017 semifinalist Magdalena Rybarikova, 30, in the second and Polona Hercog, 28, in the third, she's among the top 150.

What they're saying: "Gauff’s win showed remarkable mental toughness by a player who isn’t old enough to vote. She never cracked," the Washington Post said of her win against Hercog, 3-6, 7-6 (9-7), 7-5.

Flashback: At 13, Gauff was the youngest player to reach the 2017 U.S. Open girls’ final, losing to 16-year-old Amanda Anisimova. A year later, she won the French Open girls' singles title.

Why you'll hear about her again: Because of her age, Gauff can only play 8 professional tournaments annually. She's the only player in the women's main draw at Wimbledon playing under that restriction.

What's next: On Monday, Gauff goes up against her first seeded opponent: Simona Halep, the No. 7 seed and 2018's French Open winner.

Go deeper

USAID chief tests positive for coronavirus

An Air Force cargo jet delivers USAID supplies to Russia earlier this year. Photo: Mikhail Metzel/TASS via Getty Images

The acting administrator of the United States Agency for International Development informed senior staff Wednesday he has tested positive for coronavirus, two sources familiar with the call tell Axios.

Why it matters: John Barsa, who staffers say rarely wears a mask in their office, is the latest in a series of senior administration officials to contract the virus. His positive diagnosis comes amid broader turmoil at the agency following the election.

Bryan Walsh, author of Future
5 hours ago - Health

COVID-19 shows a bright future for vaccines

Illustration: Annelise Capossela/Axios

Promising results from COVID-19 vaccine trials offer hope not just that the pandemic could be ended sooner than expected, but that medicine itself may have a powerful new weapon.

Why it matters: Vaccines are, in the words of one expert, "the single most life-saving innovation ever," but progress had slowed in recent years. New gene-based technology that sped the arrival of the COVID vaccine will boost the overall field, and could even extend to mass killers like cancer.

7 hours ago - Health

Beware a Thanksgiving mirage

Illustration: Sarah Grillo/Axios

Don't be surprised if COVID metrics plunge over the next few days, only to spike next week.

Why it matters: The COVID Tracking Project warns of a "double-weekend pattern" on Thanksgiving — where the usual weekend backlog of data is tacked on to a holiday.