Top-seeded Jessica Pegula upset in straight sets at Citi Open by Daria Saville

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Top-seeded Jessica Pegula is out of the Citi Open after getting upset in straight sets Wednesday by Australian Daria Saville.

Pegula, the defending champion of the tournament that serves as a hard-court tuneup for the U.S. Open, lost 7-5, 6-4, with a spot in the quarterfinals on the line. The Buffalo, New York, native who's ranked seventh in the world won in Washington the last time the WTA played there in 2019 and was coming off reaching the round of 32 at Wimbledon this year.

"I was really excited to play against a top-10 player again," Saville said. "It was a great challenge. To get away with a win is even better."

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Jessica Pegula, of the United States, returns a shot during a match against Daria Saville, of Australia, at the Citi Open tennis tournament in Washington, Wednesday, Aug. 3, 2022.  (AP Photo/Carolyn Kaster)

Second-seeded Emma Raducanu beat Louisa Chirico 6-4, 6-2. Canadian qualifier Rebecca Marino beat Germany's Andrea Petkovic 6-3, 3-6, 6-1, and will next face Saville.

"I feel like I’m playing really good tennis right now," Saville said. "I’m excited for more."

Former No. 1 Simona Halep retired in the second set of her match against Anna Kalinskaya because of illness.

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Daria Saville, of Australia, serves during a match against Jessica Pegula, of the United States, at the Citi Open tennis tournament in Washington, Wednesday, Aug. 3, 2022.  (AP Photo/Carolyn Kaster)

On the men's side, Wimbledon runner-up Nick Kyrgios moved on by beating 14th-seeded Tommy Paul 6-3, 6-4. In his first singles tournament since