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Young stars Bianca Andreescu, Alexander Zverev and Stefanos Tsitsipas all moved into the quarterfinals of the China Open in Beijing on Thursday.

US Open champion Andreescu routed Jennifer Brady, 6-1, 6-3, to extend her winning streak to 17 matches. The Canadian teen next faces another young star, Naomi Osaka, who defeated Alison Riske, 6-4, 6-0. The Australian Open champion is coming off a title victory on her home soil in Osaka, Japan—her first trophy since claiming her second career Grand Slam in January.

"I'm feeling more excited than usual. I wanted to play her ever since she did so well at the US Open and Australian Open,” said Andreescu. “I'm really happy that I get to play [Osaka] tomorrow because I think it's going to be a lot of fun."

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Zverev scored his second consecutive victory this season over teenager Felix Auger-Aliassime, a 6-3, 6-1 win. The 22-year-old German, who did not face a break point, next faces Sam Querrey. The 31-year-old American prevailed over Diego Schwartzman, 7-6 (2), 6-7 (6), 6-3.

Tsitsipas derailed Nikoloz Basilashvili’s title defense with a 6-4, 3-6, 6-2 win to set up quarterfinal clash with John Isner. Tsitsipas has yet to win a match against the 34-year-old American, who leads their head-to-head series, 2-0.