India's shuttle queen Saina Nehwal has waltzed into the Women's Singles semifinals of the All England Open Badminton Championships at Birmingham. In the quarterfinals late last night, second seed Saina defeated Shixian Wang of China, in a thrilling game, 23-21, 19-21, 21-16. For a place in the finals, Saina will take on eighth seed Ratchanok Intanon of Thailand. However, in the Men's Singles, India's ace shuttler P. Kashyap yesterday crashed out of the tournament, after losing to second seeded Chinese Long Chen in the quarterfinals, 16-21,