NEW YORK – The Latest at the US Open Tennis Tournament (All Local Times):
After an unusual visit by the chair umpire, Nick Kyrgios reversed his match and won it to reach the third round of the US Open.
Kyrgios was defeated 3-0 in the second round when the official Mohamed Lahyani dismounted from his place and spoke with the player – something rarely seen during a professional tennis match. At one point, Lahyani said, "Let me help you."
The 30th-seeded Kyrgios, who was once suspended from the ATP Men's Tour after not trying during a game, started playing better and eventually beat Pierre-Hugues Herbert of France 4-6, 7-9. 6 (6), 6-3, 6-0
Alexander Zverev has finally reached the third round of the US Open.  Nicolas Mahut came in fourth with 6-4, 6-4, 6-2 for his best result in the last Grand Slam tournament.
Zverev was eliminated in the second round in his previous three games
Angelique Kerber, three-time champion, passed a second round test at the US Open and is 82nd. -Played Johanna Larsson from Sweden with 6: 2, 5: 7, 6-4.
Kerber moved forward in a third set of long baseline changes when he interrupted the penultimate game when Larsson made a double mistake.
The Kerber in fourth place won the US Open in 2016. Their ot Grand Slam trophies came at this year's Australian Open and this year's Wimbledon.
The Williams sisters will be kicking off Friday night at the Arthur Ashe Stadium with their third round of showdown at the US Open.
It will be the 30th Tourleveltreffen between Venus and Serena, but the earliest in a Grand Slam since Venus at the Australian Open in 1998 won a match in the second round. This was the first time they played each other as professionals.
Venus is Seed No. 16, a dot above her younger sister. They have met twice in the US Open Final, winning in 2001 and 2002.
They are persecuted on Ashe by master Juan Martin del Potro against Spaniard Fernando Verdasco.
1:25 pm  The Belarussians are coming.
Aliaksandra Sasnovich and Aryna Sabalenka won in the second round at the US Open, continuing Belarus's top performance in a major.
Victoria Azarenka and Vera Lapko win as well In the first games in Flushing Meadows, Belarus, four players reached the second round of a Grand Slam for the first time.
Azarenka was already in the third round and was accompanied by the 33rd Sasnovich who defeated the No. 11 Daria Kasatkina 6-2, 7-6 (3), and No. 26 seed Sabalenka who displaced Vera Zvonareva 6 -3, 7-6 (7).
Azarenka faces defending champion Sloane Stephens in the third round Friday. Lapko was eliminated on Wednesday by 15-placed Elise Mertens.
The Extreme Heat policy is in effect at the US Open for the third straight day.
A 10-minute break is allowed between the second and third set of women's singles if one of the players requests one. For men's singles, the break would be between the third and fourth set.
U.S. Open officials began the policy that on Tuesday, when temperatures first rose to the mid-90s, is a rule on the women's tour, but not the men's. It was 86 degrees (30 degrees Celsius) just before Thursday's session at Arthur Ashe Stadium should begin.
The Open says the policy will last until further notice.
The first two rounds of the US Open were always a breeze for Roger Federer.
Alexander Zverev is still trying to master her.
Federer tries to stay unbeaten in the first two rounds of Flushing Meadows, and Zverev finally tries the first round when both are in action on Thursday.
The ex-champions Novak Djokovic and Maric Cilic have also participated in the men's second round, and among the women is 2016 World Champion Angelique Kerber.  Federer, 17-0 in the games of the second round, faces Frenchman Benoit Paire. Federer No. 2 won all six matches, although Paire had two match points in Germany's last match in June before five-time US Open winner won 9-7 in the tiebreaker in the third set.
Zverev, the # 4 seed, is in the US Open for the fourth time. He faces another Frenchman, Nicolas Mahut.
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