Olympic tennis: Williams sets up final with Sharapova
Fourth seed Williams of the US swept past 23-year-old Azarenka recording 16 aces and 33 winners on her way to a 6-1, 6-2 win.
Sharapova ousted fellow Russian and World No. 15 Maria Kirilenko in the other semifinal earlier Friday.
Azarenka and Kirilenko will face off for the bronze medal Sunday.