US players dominated the first day of main-draw play at the San Diego Open. The only two Americans so far who will not advance, Alison Riske-Amritraj and Sofia Kenin, lost at the hands of ones who did, Louisa Chirico and Coco Vandeweghe.
Madison Keys defeated Ellen Perez 6-1 6-4. After the match, the world No.18 American was asked about the draw, which has her playing the winner of Kasatkina versus Fernandez next. Keys laughed, “it’s so tough […] I barely made the cut at 17 and was like, ‘ah, it’s one of those weeks.