Double Olympic medallist PV Sindhu overcame a spirited challenge from teenage compatriot Unnati Hooda to progress to the second round, while Ayush Shetty produced a stunning upset by knocking out World No. 11 Alwi Farhan in the opening round of the China Open here on Wednesday.

Sindhu, who ended a two-year title drought by winning the Japan Open last week, had to dig deep before overcoming 18-year-old compatriot Unnati 21-14, 9-21, 21-10 in a hard-fought 56-minute women’s singles opening-round clash.