Today's featured matches
Seedings in parenthesis
CENTRE COURT
Play begins at 5 a.m. PDT: Andy Murray (4) vs. Richard Gasquet; five-time champion Venus Williams (23) vs. Tsvetana Pironkova (32), who upset Williams in last year's quarterfinals; defending champion Rafael Nadal (1) vs. Juan Martin del Potro (24), 2009 U.S. Open champion.
COURT 1
Play begins at 5 a.m. PDT: Marion Bartoli (9) vs. defending champion Serena Williams (7); Michael Llodra (19) vs. Novak Djokovic (2); Mikhail Youzhny (18) vs. six-time champion Roger Federer (3).
COURT 2
Play begins at 4 a.m. PDT: Peng Shuai (20) vs. 2004 champion Maria Sharapova (5); Caroline Wozniacki (1) vs. Dominika Cibulkova (24); Mardy Fish (10), the last American man left in singles, vs. Tomas Berdych (6), a Wimbledon finalist last year.
COURT 3
Play begins at 4 a.m. PDT: Nadia Petrova vs. Victoria Azarenka (4)
COURT 12
Play begins at 4 a.m. PDT: Petra Kvitova (8) vs. Yanina Wickmayer (19); Vania King of Long Beach and Yaroslava Shvedova (1), the defending champions, vs. Sabine Lisicki and Samantha Stosur.
COURT 18
Play begins at 4 a.m. PDT: Bernard Tomic, at 18 the youngest man in the fourth round in 21 years, vs. Xavier Malisse; Bob Bryan and Mike Bryan (1) vs. Alex Bogomolov and Ivo Karlovic.
