Roger Federer Reaches U.S. Open Quarterfinals, Defeating Juan Monaco

Five-time champion Roger Federer defeated Juan Monaco of Argentina 6-1, 6-2, 6-0 early this morning to reach the U.S. Open quarterfinals.

Federer, the third seed from Switzerland, had 14 aces in his win. His next opponent will be Jo-Wilfried Tsonga, the 11th seed from France.

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