The Latest: Play begins at Day 1 of the US Open

NEW YORK (AP) The Latest on the U.S. Open, the last Grand Slam tournament of the year (all times local):
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11:45 a.m.
Play has begun on the first day of the U.S. Open, with Wimbledon champion Garbine Muguruza on the Arthur Ashe Stadium court against American Varvara Lepchenko.
Other matches getting underway on the main courts include two-time Wimbledon champion Petra Kvitova against former No. 1 Jelena Jankovic, Spaniard Nicolas Almagro against American Steve Johnson and No. 32-seeded Lauren Davis against fellow American Sofia Kenin.
There appears to be no need for the year-old roof on Ashe. Play began Monday with mostly sunny skies and a temperature of 70 degrees (21 Celsius).
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10:30 a.m.
The 2017 U.S. Open is set to begin with near-perfect weather and a much-anticipated match.
That comes Monday night when No. 2-seeded Simona Halep takes on former No. 1 and five-time major champion Maria Sharapova, who was given a wild-card entry to the U.S. Open after returning from a 15-month doping ban. Halep is winless against Sharapova in six previous meetings.
Play begins in the day session in Arthur Ashe Stadium with Wimbledon champ Garbine Muguruza against American Varvara Lepchenko. The 2014 U.S. Open champion Marin Cilic is next up against aptly named Tennys Sandrgen of the U.S. And seven-time major champion Venus Williams plays Viktoria Kuzmova of Slovakia.
Other big names on Monday's schedule include No. 4 Alexander Zverev, two-time Wimbledon champion Petra Kvitova and top American John Isner.