Saina loses in second round in Hong Kong
The London Olympics bronze medallist lost 19�'21, 15�'21 in the final Super Series of the season.
With this win, World No.61 Wang extended her head�'to�'head to 4�'2.
In was also the end of the Indian challenge in the women's and mixed doubles.
In the women's doubles, Pradnya Gadre and Ashwini Ponnappa lost to Thailand's Duanganong Aroonkesorn and Kunchala Voravichitchaikul 17�'21, 18�'21 in 29 minutes in the second round in their first ever meeting.
In the mixed doubles category, Chinese top seeds Chen Xu and Jin Ma beat Pranaav Chopra and N. Siki Reddy 21�'16, 21�'10 in 31 minutes in their first ever encounter.