India's ace shuttler Saina Nehwal has won her third and final round robin match of the BWF World Super Series currently underway in Liu Zhou, China. Saina today defeated Xin Wang of China 21-17, 22-20. World Number four Saina had on Thursday stormed into the semi-finals after defeating Japan's Sayaka Sato 21-16, 21-13. She beat Youn Joo Bae of Korea 21-14, 17-21, 21-14 in her opening fixture on Wednesday.