US Open results at a glance for Monday.
MEN'S RESULTS Monday: Fourth Round Roger Federer defeated No. 13 Jurgen Melzer, No. 3 Novak Djokovic defeated No. 19 Mardy Fish, No. 5 Robin Soderling beat No. 21 Albert Montanes and No. 17 Gael Monfils beat unseeded Richard Gasquet in straight sets. No. 2 Roger Federer faced No. 13 Jurgen Melzer in the night match.
WOMEN'S RESULTS: Fourth Round: No. 1 Caroline Wozniacki defeated No. 14 Maria Sharapova, No. 7 Vera Zvonareva defeated unseeded Andrea Petkovic, unseeded Dominika Cibulkova beat No. 11 Svetlana Kuznetsova and No. 31 Kaia Kanepi beat No. 15 Yanina Wickmayer.
ON COURT TUESDAY:
STAT OF THE DAY: Maria Sharapova committed 36 unforced errors compared to just 10 by opponent Caroline Wozniacki.
QUOTE OF THE DAY: "I know my game and I know myself, so I knew I could make it. I could beat everybody in this tournament. You know, I was just waiting for a moment, and I'm happy it's here." ó Dominika Cibulkova, who beat former U.S. Open champion Svetlana Kuznetsova to advance to the quarterfinals where she'll meet No. 1-seed Caroline Wozniacki.