NEW HAVEN, Conn. (AP) -- Marion Bartoli rallied from three games down in the third set to beat American Sloane Stephens and advance to the quarterfinals of the New Haven Open.

The fifth-seeded Frenchwoman had lost nine straight games before finding her groundstrokes and overpowering the 19-year-old Stephens 6-1, 0-6, 6-3 on Tuesday.

She will face fourth-seeded Sara Errani of Italy in the quarters. Errani beat Carla Suarez Navarro of Spain in straight sets, 6-4, 6-3.

Germany's Mona Barthel withdrew from her match with seventh-seeded Maria Kirilenko of Russia because of a stomach disorder.

Kirilenko will play the winner of the Tuesday's featured match between top-seeded Agnieszka Radwanska of Poland and Bulgarian qualifier Olga Govortsova.

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