Christina McHale is first up for American women as second-round play begins in the 2016 U.S. Open.
Men's play moves into the second round on Wednesday as well. Among headliners at the USTA Billie Jean King National Tennis Center: No. 1 seed Novak Djokovic and Canada's Milos Raonic, the fifth seed.
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Wednesday also brings second-round matches for No. 2 women's seed Angelique Kerber in a prime-time match. Four U.S. players are due under the lights, including No. 8 seed Madison Keys.