Four top - seeds competed at the Western and Southern Open on clay . `` It 's not one thing like my running , my forehand or backhand -- it 's just my timing . Maria Sharapova , Li Na , Petra Kvitova and Marion Fischer are all into the third round . American Serena Williams won her first round match , beating Lucie Hradecka .
Four top - seeds competed at the Western and Southern Open on clay . Maria Sharapova , Li Na , Petra Kvitova and Marion Fischer are all into the third round . American Serena Williams won her first round match , beating Lucie Hradecka .