DUBAI, United Arab Emirates (AP) — Top-seeded Simona Halep's first match since losing to Garbine Muguruza in the Australian Open semifinals was a tough 1-6, 6-2, 7-6 (7) win over Ons Jabeur at the...

NEW YORK (AP) — To Coco Gauff, a doubles match Friday was no warmup for a singles showdown against Naomi Osaka.

It was a chance for her and Caty McNally to extend a winning streak they want...

PARIS (AP) — Beating 23-time major champion Serena Williams or No. 1-ranked Naomi Osaka at the French Open was one thing. Following up those upsets with other victories two days later was entirely...

PARIS (AP) — This was one deficit too big to overcome for Naomi Osaka, whose Grand Slam winning streak is over.

The No. 1-ranked Osaka couldn't muster a comeback after falling way behind yet...

Romania upset defending champion Czech Republic 3-2 to advance to the semifinals of the Fed Cup on Sunday, along with France, Belarus and Australia.

Romania reached the semifinals for the first time after its first victory against the Czechs, who won six titles in the last eight years.

Irina-Camelia Begu and Monica Niculescu teamed up to clinch the best-of-five contest with a 6-7 (2), 6-4, 6-4 win over Czech pair Katerina Siniakova and Barbora Krejcikova in the doubles.

France and Belarus were in command of their Fed Cup first-round ties while 2018 finalists the Czech Republic and the United States were level in their ties on Saturday.

Australian Open semifinalist Karolina Pliskova won the first point for the Czechs against Romania after easing past Mihaela Burzanescu 6-1, 6-4 on an indoor hard-court in Ostrava.

But Simona Halep won the second singles by routing Katerina Siniakova, the star of last year's final victory against the United States, 6-4, 6-0.

PRAGUE (AP) — Karolina Pliskova will be the top player for defending Fed Cup champion Czech Republic in its first-round meeting with Romania, after Australian Open finalist Petra Kvitova pulled out.

Pliskova lost in the Australian Open semifinals this month to Naomi Osaka, who then defeated Kvitova in the final.

MELBOURNE, Australia (AP) — First-time partners Rajeev Ram and Barbora Krejcikova are Grand Slam mixed doubles champions.

The U.S.-Czech combination beat Australian wildcards John-Patrick Smith and Astra Sharma 7-6 (3), 6-1 to win the Australian Open mixed doubles title on Saturday.

MELBOURNE, Australia (AP) — The Latest on Saturday at the Australian Open (all times local):

12:25 a.m.

First-time combination Rajeev Ram and Barbora Krejcikova have won the Australian Open mixed doubles title with a 7-6 (3), 6-1 win over Aussie pair John-Patrick Smith and Astra Sharma.

It was the first tournament together for each team, the winners as the No.3 seeds and the Australians needing a wildcard to even get into the draw.

PRAGUE (AP) — Six finals, six victories.

The Czech Republic kept its perfect record in the Fed Cup finals by capturing the trophy for the sixth time in eight years by defeating defending champion United States.

Katerina Siniakova saved two match points before defeating Sofia Kenin 7-5, 5-7, 7-5 in the first reverse singles on Sunday to give the Czechs an insurmountable 3-0 lead over defending champion United States in the best-of-five final. The remaining two matches were not played.

PRAGUE (AP) — Barbora Strycova and Katerina Siniakova won their singles for the Czech Republic to take a commanding 2-0 over the defending champion United States in the Fed Cup final on Saturday.

Strycova rallied from a set down to defeat Sofia Kenin 6-7 (5), 6-1, 6-4.

Siniakova stretched the advantage by dispatching Alison Riske 6-3, 7-6 (2) to the delight of more than 14,000 fans at Prague's O2 Arena.

PRAGUE (AP) — World No. 8 Karolina Pliskova has been ruled out of the Czech Republic team in the Fed Cup final against the defending champion United States next weekend due to calf muscle and wrist injuries.

The Czech team says Pliskova was injured last week during the WTA Finals in Singapore, where she lost to Sloane Stephens of the United States in the semifinals.

NEW YORK (AP) — The Latest on the U.S. Open tennis tournament (all times local):

11 p.m.

The 13th-seeded pair of CoCo Vandeweghe and Ashleigh Barty upset the top-seeded duo of Barbora Krejcikova and Katerina Siniakova 6-4, 7-6 (6) to reach the U.S. Open women's doubles final.

Krejcikova and Siniakova won the Wimbledon doubles title in July.

LONDON (AP) — Breaking and creating records weren't the most special parts of winning the Wimbledon women's doubles title for Barbora Krejcikova.

Krejcikova and Katerina Siniakova, both 22 from the Czech Republic, won their second successive Grand Slam title with a 6-4, 4-6, 6-0 victory over Kveta Peschke and Nicole Melichar on Saturday.

STUTTGART, Germany (AP) — Petra Kvitova defeated Angelique Kerber 6-2, 6-2 in under an hour to send the Czech Republic to the Fed Cup final with what proved to be a 4-1 win over Germany on Sunday.

After Kvitova won the deciding rubber to make it 3-1, Katerina Siniakova and Barbora Strycova also won the doubles match that they were leading 7-5 when Julia Goerges and Anna-Lena Groenefeld retired after 37 minutes.

ST. PETERSBURG, Russia (AP) — Australian Open champion Caroline Wozniacki's lost to Daria Kasatkina 7-6 (2), 6-3 in the quarterfinals of the St. Petersburg Ladies Trophy on Friday.

Kasatkina came back from a break down to win the first set in a tiebreaker before speeding to a 3-0 lead over the top-ranked Wozniacki in the second set.

SHENZHEN, China (AP) — Defending champion Katerina Siniakova defeated Maria Sharapova 6-2, 3-6, 6-3 on Friday in her first meeting with the five-time major winner to reach the final of the Shenzhen Open.

The sixth-seeded Siniakova hit 10 aces to set up a final on Saturday with top-ranked Simona Halep, who beat fourth-seeded Irina-Camelia Begu 6-1, 6-4.

NEW YORK (AP) — Martina Hingis swept her doubles events at the U.S. Open.

Don't look for her to try singles again.

"No thanks," said Hingis, who will be 37 on Sept. 30. "I'm doing just fine with the mixed and the doubles."

Hingis won her 25th Grand Slam title and second in two days, teaming with Chan Yung-Jan of Taiwan to beat Lucie Hradecka and Katerina Siniakova of the Czech Republic 6-3, 6-2 on Sunday in the women's doubles final.