|Polona Hercog upset world number 7 Marion Bartoli|
Hercog, whose forehand is especially effective on clay courts, is ranked number 38 in the world. Two weeks ago, in Miami, the Slovenian player lost a three-set match to Marion Bartoli in the second round. Bartoli, of course, would go on to advance to the semifinals after breaking Victoria Azarenka's 26-match streak.
In an all-Russian match, 2006 champion Nadia Petrova defeated Anastasia Pavlyuchenkova 6-1, 6-4, and 2008 champion Serena Williams defeated Marina Erakovic 6-2, 6-2.