Defending champion Serena Williams cruises into the fourth round at CNN . World No . 1 will next play Maria Sharapova , who beat her in the last 16 final . fourth seed Serena Williams also progresses into last 16 of grass-court grand slam . Italian 10th seed Maria Sharapova and No . 14 It 's a great match-up Victoria Azarenka of Belarus crash out .
Defending champion Serena Williams cruises into the fourth round at CNN . World No . 1 will next play Maria Sharapova , who beat her in the last 16 final . fourth seed Serena Williams also progresses into last 16 of grass-court grand slam . Italian 10th seed Maria Sharapova and No . 14 Victoria Azarenka of Belarus crash out .