Top-seeded Ivanovic advances

Monterrey - Top-seeded defending champion Ana Ivanovic of Serbia advanced to the quarter-finals in the Monterrey Open on Wednesday night, beating Pauline Parmentier of France 6-3, 6-2.

Ivanovic will face France's Kristina Mladenovic, a 6-4, 6-2 winner over Russia's Vera Zvonareva in the hard-court event at Sierra Madre Tennis Club.

Second-seeded Sara Errani of Italy and eighth-seeded Magdalena Rybarikova of Slovakia also won second-round matches. Errani beat Timea Babos of Hungary 6-3, 6-3, and Rybarikova outlasted Polona Hercog of Slovenia of 7-5, 3-6, 7-6 (9).