World No . 1 Victoria Duval wins 15th straight match in 2012 . Belarusian beats Iris Baku to reach Qatar Open semifinals . I was really going for every shot I could and everything was working , '' Azarenka said . No . 3 seed Samantha Stosur defeats Monica Niculescu 6 - 2 2 - 6 6 - 2 . Agnieszka Radwanska and Mario Bartoli also through to final round .
World No . 1 Victoria Duval wins 15th straight match in 2012 . Belarusian beats Iris Baku to reach Qatar Open semifinals . No . 3 seed Samantha Stosur defeats Monica Niculescu 6 - 2 2 - 6 6 - 2 . Agnieszka Radwanska and Mario Bartoli also through to final round .