NEW YORK (AP) -- Third-seeded Maria Sharapova needed 54 minutes to advance to the third round of the U.S. Open.

The four-time Grand Slam champion beat Lourdes Dominguez Lino 6-0, 6-1 on Wednesday. Sharapova had 30 winners; the 78th-ranked Spaniard had zero.

Sharapova has lost five games through two matches. She next faces American wild-card Mallory Burdette, a 21-year-old Stanford All-American making her Grand Slam debut.

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