Watch Madrid Quarter Finals Highlights

Victoria Azarenka def. Li Na 3-6,6-3,6-3, Serena Williams def. Maria Sharapova 6-1,6-3, Agnieszka Radwanska def. Varvara Lepchenko 6-4,6-4, Lucie Hradecka def. Samantha Stosur 7-6,7-6