World No . 1 Australian Open champion Azarenka was unaffected by a rain break as the roof was closed on Centre Court as she demolished Serbia 's Ana Ivanovic 6-1 6-0 in a battle of former world Maria Sharapova loses Eighth -round match against Sabine Lisicki . Belgian will next play compatriot Angelique Kerber in Wimbledon quarterfinals . Eighth seed Lisicki beats Maria Sharapova in Lisicki 's final appearance at SW19 . 1 -time winner Serena Williams to play defending champion Petra Kvitova .
World No . 1 Maria Sharapova loses Eighth -round match against Sabine Lisicki . Belgian will next play compatriot Angelique Kerber in Wimbledon quarterfinals . Eighth seed Lisicki beats Maria Sharapova in Lisicki 's final appearance at SW19 . 1 -time winner Serena Williams to play defending champion Petra Kvitova .