NEW YORK (AP) -- The Latest on the U.S. Open tennis tournament (all times local):
A year ago, Williams lost a controversial and chaotic final in New York to Naomi Osaka.
Williams already owns six U.S. Open titles and 23 major championships in all. That total is a record in the Open era, which began in 1968 when professionals were first allowed to play in Grand Slam tournaments.
The only player with more is Margaret Court, who won more than half of her 24 trophies against amateur competition.
Serena Williams is halfway to a return to the U.S. Open final after winning the first set 6-3 over Elina Svitolina.
Williams pulled out a 12-point game while serving to start the match and then broke on the 18th point of the second game en route to a 3-0 lead.
The No. 8-seeded Williams is seeking a 24th Grand Slam singles title. She has won six in Flushing Meadows but lost to Naomi Osaka in last year's final.
Ash Barty is a win away from a second straight U.S. Open women's doubles title.
Barty and Victoria Azarenka routed Viktoria Kuzmova and Aliaksandra Sasnovich 6-0, 6-1 in a semifinal match that lasted just 56 minutes.
Barty won the women's doubles title last year at Flushing Meadows with CoCo Vandeweghe. Vandeweghe was still recovering from ankle problems this year so Barty is teaming with Azarenka, who like Barty is a former top-ranked singles player and major champion.
Barty will return to No. 1 in singles after the U.S. Open.
Barty and Azarenka, the No. 8 seeds who beat American teenagers Coco Gauff and Caty McNally in the third round, will face wither the fourth-seeded team of Elise Mertens and Aryna Sabalenka, or Caroline Dolehide and Vania King of the U.S.
They will face No. 8 seeds Marcel Granollers and Horacio Zeballos for the title.
Cabal and Farah advanced by beating Jamie Murray and Neal Skupski 7-6 (5), 7-6 (8) in Thursday's semifinals.
Cabal and Farah are the first men's doubles pairing from Colombia to win a Grand Slam trophy and to be ranked No. 1.
Granollers and Zeballos also won a two-tiebreaker semifinal, defeating Kevin Krawietz and Andreas Mies 7-6 (2), 7-6 (5).
None of the four finalists ever has won a U.S. Open men's doubles title.
Cabal and Farah were eliminated in the semifinals a year ago.
Granollers was a runner-up in 2014 and a semifinalist two other times with different partners. Zeballos was a semifinalist in 2010.
The way Naomi Osaka consoled Coco Gauff after beating the 15-year-old American in the U.S. Open's third round was admired by many. On Thursday, Osaka was given the women's 2019 U.S. Open Sportsmanship Award.
Diego Schwartzman was the men's honoree.
Both get a trophy and a $5,000 donation to a charity of their choice.
Todd Martin, the former player who is co-chair of the committee that chooses the recipients, said the two ''demonstrated a level of sportsmanship that is even more impressive than their play on the court.''
Serena Williams is once again in the latter stages of a Grand Slam tournament as she pursues her record-equaling 24th major championship.
Williams faces No. 5 seed Elina Svitolina in the U.S. Open semifinals Thursday night.
The 37-year-old American already owns 23 singles Slam trophies, six from Flushing Meadows.
Only one player in the history of tennis has 24: Margaret Court, who won more than half of hers against amateur competition before professionals were admitted to Grand Slam tournaments.
Williams has lost her past three major finals, including at the U.S. Open last year.
The second semifinal is No. 13 Belinda Bencic against No. 15 Bianca Andreescu.
The 19-year-old Andreescu is in the U.S. Open's main draw for the first time.
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