Ankita Raina beats former World No 1 Samantha Stosur to notch up biggest win of tennis career at Kunming Open

India's top women's singles player Ankita Raina shocked former US Open champion Samantha Stosur for the biggest win of her career, progressing to the second round of Kunping Open in Anning on Wednesday.

The Indian, an Asian Games bronze medallist, shocked the fancied Australian 7-5 2-6 6-5 in a gruelling two hours and fifty minutes battle at the WTA 125K event.

This is the second time the two faced off, with Stosur winning their last encounter in straight sets.