Emma Raducanu and Elena Rybakina handled the business in singles but had to retire from their Washington doubles semifinal. On Friday, the British tennis player defeated Maria Sakkari 6-4 7-5 to reach the Citi Open semifinal. Meanwhile, the Kazakh ousted Magdalena Frech 6-3 6-3.

On a muggy day with the temperature topping 90 degrees Fahrenheit (32 Celsius), Raducanu took a medical timeout while reeling off the last five games of the match after trailing 5-2 in the second set.