Emma Raducanu defeats Marta Kostyuk at the DC Open and will face Naomi Osaka next

WASHINGTON (AP) — Emma Raducanu handed No. 7 seed Marta Kostyuk a sixth consecutive loss Tuesday, defeating her 7-6 (4), 6-4 at the DC Open to prolong a slide that now has lasted more than two months.

This was the fifth tournament in a row where Kostyuk exited in the first round; she also lost in the fourth round at Rome, starting the current rut. She hasn't won a match since May 11 in Rome.

The 46th-ranked Raducanu, who won the 2021 U.S. Open, will face four-time major champion Naomi Osaka next. Osaka was a 6-2, 7-5 winner against Yulia Putintseva.

In men's action at the hard-court tournament, Cam Norrie eliminated No. 2 seed Lorenzo Musetti 3-6, 6-2, 6-3, keeping the Italian without a win since he got injured last month at the French Open and needed to quit playing in the semifinals. Musetti lost in the first round at Wimbledon, a year after reaching the semifinals there.

Holger Rune, who was seeded third in Washington, withdrew before his match Tuesday because of a back injury.

Venus Williams was scheduled to play her first singles match in more than a year Tuesday night against Peyton Stearns. The 45-year-old Williams won in doubles at the DC Open on Monday.

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AP tennis: https://apnews.com/hub/tennis

Emma Raducanu, of Britain, returns the ball to Marta Kostyuk, of Ukraine, during a match at the Citi Open tennis tournament Tuesday, July 22, 2025, in Washington. (AP Photo/Nick Wass)

Marta Kostyuk, of Ukraine, returns the ball to Emma Raducanu, of Britain, during a match at the Citi Open tennis tournament Tuesday, July 22, 2025, in Washington. (AP Photo/Nick Wass)

Emma Raducanu, of Britain, serves to Marta Kostyuk, of Ukraine, during a match at the Citi Open tennis tournament Tuesday, July 22, 2025, in Washington. (AP Photo/Nick Wass)

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