The 2011 U.S. Open will take place August 29-September 11, 2011 in the USTA Billie Jean King National Tennis Center at Flushing Meadows, Queens, New York City, United States. The tournament is played on outdoor hard courts.Defending champions are:Rafael Nadal - Men's SinglesKim Clijsters - Women's SIngles Bob Bryan / Mike Bryan - Men's DoublesVania King / Yaroslava Shvedova - Women's DoublesLiezel Huber / Bob Bryan - Mixed DoublesWatch the 2011 U.S. Open live online.Please note: livestream might not be available in all countries. Check with the providers listed below.