Novak Djokovic (2), Serbia, def. Julien Benneteau (31), France, 6-3, 6-2, 6-2.

David Ferrer (4), Spain, def. Lleyton Hewitt, Australia, 7-6 (9), 4-6, 6-3, 6-0.

Juan Martin del Potro (7), Argentina, def. Leonardo Mayer, Argentina, 6-3, 7-5, 7-6 (9).

Janko Tipsarevic (8), Serbia, def. Grega Zemlja, Slovenia, 6-4, 6-3, 7-5.

John Isner (9), United States, lost to Philipp Kohlschreiber (19), Germany, 6-4, 3-6, 4-6, 6-3, 6-4.

Richard Gasquet (13), France, def. Steve Johnson, United States, 7-6 (4), 6-2, 6-3.

Alexandr Dolgopolov (14), Ukraine, lost to Stanislas Wawrinka (18), Switzerland, 6-4, 6-4, 6-2.

Stanislas Wawrinka (18), Switzerland, def. Alexandr Dolgopolov (14), Ukraine, 6-4, 6-4, 6-2.

Philipp Kohlschreiber (19), Germany, def. John Isner (9), United States, 6-4, 3-6, 4-6, 6-3, 6-4.

Andy Roddick (20), United States, def. Fabio Fognini, Italy, 7-5, 7-6 (1), 4-6, 6-4.

Julien Benneteau (31), France, lost to Novak Djokovic (2), Serbia, 6-3, 6-2, 6-2.

Victoria Azarenka (1), Belarus, def. Anna Tatishvili, Georgia, 6-2, 6-2.

Maria Sharapova (3), Russia, def. Nadia Petrova (19), Russia, 6-1, 4-6, 6-4.

Petra Kvitova (5), Czech Republic, lost to Marion Bartoli (11), France, 1-6, 6-2, 6-0.

Sam Stosur (7), Australia, def. Laura Robson, Britain, 6-4, 6-4.

Marion Bartoli (11), France, def. Petra Kvitova (5), Czech Republic, 1-6, 6-2, 6-0.

Nadia Petrova (19), Russia, lost to Maria Sharapova (3), Russia, 6-1, 4-6, 6-4.