Maria Sharapova advanced to the third round of the Madrid Open by beating Mariana Duque-Marino of Colombia 6-1, 6-2 on Tuesday.
The third-seeded Russian broke Duque-Marino's serve four times while saving three break points on her own serve.
Fourth-seeded Petra Kvitova of the Czech Republic also advanced, beating Coco Vandeweghe of the United States 6-4, 2-6, 6-3.
Also, Barbora Strycova of the Czech Republic beat Varvara Lepchenko of the United States 6-4, 6-2, and Victoria Azarenka of Belarus defeated Ajla Tomljanocic of Croatia 6-3, 6-3.
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