(CNN) -- Fourth seed David Ferrer was sent crashing out of the U.S. Open by Frenchman Gilles Simon on Sunday, becoming the biggest men's scalp to be taken so far during the final grand slam of the tennis season, while former women's champion Maria Sharapova also exited. In oppressively humid conditions at Flushing Meadows, Simon and Ferrer traded the first two sets 6-3 before Simon found another level to wrap up the final two sets 6-1 6-3. The 26th seed took advantage of some sloppy play by Ferrer, who made 52 unforced errors and appeared to be struggling physically with the heat in the third-round tie.
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Fourth seed David Ferrer out of U.S. Open, beaten by France's Gilles Simon
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Roger Federer reaches last 16 as he continues bid for sixth New York title
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Caroline Wozniacki reaches women's quarterfinals, beating Maria Sharapova
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Belinda Bencic, 17, becomes youngest U.S. Open quarterfinalist since 1997
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