MONTERREY, Mexico (AP) -- Top-seeded Roberta Vinci of Italy reached the second round of the Monterrey Open on Monday with a 7-5, 7-5 victory over Coco Vandeweghe of the United States.

In other first-round matches, Nina Bratchikova of Russia beat compatriot Anastasia Pivovarova 6-3, 6-1, and Alexandra Cadantu of Romania defeated Jelena Dokic of Australia 3-6, 6-1, 7-5.

Unlike most events played in Latin America, the Monterrey Open is played on hardcourts instead of clay.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.