Venus Williams of the United States hits a return during her women's singles third round match against Maria Sharapova of Russia on the fifth day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 18, 2013. Maria Sharapova won 2-0. (Xinhua/Bai Xue)
Maria Sharapova of Russia celebrates after winning her third round women's singles match against Venus Williams of the United States on the fifth day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 18, 2013. Maria Sharapova won 2-0. (Xinhua/Bai Xue)
Maria Sharapova of Russia hits a return during her third round women's singles match against Venus Williams of the United States on the fifth day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 18, 2013. Maria Sharapova won 2-0. (Xinhua/Bai Xue)