Caroline Wozniacki defeated at the French Open by Daniela Martínez . ` She played very well today , better than me for sure , '' Wozniacki told a press conference . World number one Serena 6 - 1 6 - 3 in just 73 minutes at Roland International . Australian 8th seed Samantha Stosur dumped out by Gisela Dulko . Defending champion Francesca Schiavone through as Shuai Liang retires hurt .
Caroline Wozniacki defeated at the French Open by Daniela Martínez . World number one Serena 6 - 1 6 - 3 in just 73 minutes at Roland International . Australian 8th seed Samantha Stosur dumped out by Gisela Dulko . Defending champion Francesca Schiavone through as Shuai Liang retires hurt .