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Second-seeded Agnieszka Radwanska coasted into the fourth round of the BNP Paribas Open with a 6-0, 6-0 victory over Annika Beck of Germany on Sunday.
Eugenie Bouchard knocked off ninth-seeded Sara Errani of Italy.
The 19-year-old Canadian earned a 6-3, 6-3, victory over Errani.
2011 champion Caroline Wozniacki also advanced, topping qualifier Yaroslava Shvedova of Kazakhstan 7-6 (7), 3-6, 6-1.
In the late match, No. 7 seed Jelena Jankovic overcame back problems to defeat Magdalena Rybarikova of Slovakia 6-3, 6-2.
Information from The Associated Press was used in this report.