Alycia Parks knocked out top-seeded Emma Navarro 4-6, 6-3, 6-2 in an all-U.S. second-round match at the Abierto GNP Seguros on Wednesday in Monterrey, Mexico.

After dropping the first set, Parks got the lone service break of the second set for a 2-0 lead. She added breaks on each of Navarro's first three service games of the final set to pull away.

Next up for Parks is Slovakia's Rebecca Sramkova, who rallied past seventh-seeded Leylah Fernandez of Canada 2-6, 6-3, 6-2

Third-seeded Diana Shnaider won 7-6 (3), 6-1 in an all-Russian matchup against Kamilla Rakhimova, but fourth-seeded Beatriz Haddad Maia of Brazil fell 6-3, 6-4 to the Czech Republic's Marie Bouzkova.

Fifth-seeded Elise Mertens of Belgium cruised past Croatia's Donna Vekic 6-3, 6-3, and sixth-seeded Linda Noskova of the C

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