Beatrice Capra took out No. 18 Aravane Rezai of France 7-5, 2-6, 6-3 to reach the third round of the U.S. Open in her Grand Slam debut.

The 18-year-old Capra is the youngest player left in the women's field and the lowest-ranked, at 371st. She is from Ellicott City, Md., and trains at the Evert Academy in Delray Beach, Fla.

This is the first tour-level, main-draw event of Capra's career. She knocked off 95th-ranked Karolina Sprem in the opening round.

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Capra could face Maria Sharapova next and she is even more of an outsider than Melanie Oudin was last year at the U.S. Open.

Rezai twice has reached the fourth round at major tournaments and has also won two doubles titles on the USTA Pro Circuit, both in 2008.