World number two Saina Nehwal today advanced to the pre-quarterfinals of the China Open Badminton tournament at Fuzhou. In the opening round, top seed Saina defeated China's Sun Yu in straight games, 22-20, 21-18.PV Sindhu is now playing her first round match against Russian Ksenia Polikarpova.In the Men's section, Ajay Jayaram bowed out in the first round after losing to China's top seed Chen Long, 12-21, 11-21.Kidambi Srikanth, HS Prannoy and the pair of Jwala Gutta and Ashwini Ponappa will be seen in action later today.