Olympic Champion Li Xuerui of China will take on former World Champion Ratchanok Intanon of Thailand in the Women's Singles Final of the India Open Super Series badminton tournament on Sunday. In the semi-finals at the Sri Fort Stadium in New Delhi today, while Li Xuerui defeated defending champion Saina Nehwal of India in three games 22-20, 17-21, 21-19, Ratchanok Intanon overcame Korean Bae Yeon Ju in straight games 21-8, 21-11.