SAN JOSE, California. Fourth-placed Spaniard Paula Badosa interrupted the serve twice at the end of the final set before winning the tie-break to beat 21-year-old Elisabeth Mandlik 6–2, 5–7, 7–6 (5). at the Mubadala Silicon Valley Classic on Wednesday.

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The other winners in San Jose were Wimbledon runner-up Ons Jaber of Tunisia, seventh seed Daria Kasatkina of Russia, and unseeded American Amanda Anisimova, who edged out eighth seed Karolina Pliskova of the Czech Republic 3-6, 7-5, 6-. one.

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No. 3 seed Jaber defeated Madison Keys 7-5, 6-1, while Kasatkina defeated another American, Taylor Townsend.

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Mandlik, daughter of four-time Grand Slam winner Hana Mandlikova, served twice against Badosa, leading 5-4 and 6-5 in the deciding set.

But Badosa broke down both times and then won three of the last four points in the tie-break.

Four-time Grand Slam champion Naomi Osaka of Japan will take on American Coco Gauff in the US Open Round of 16 schedule on Thursday.