India`s star shuttler PV Sindhu crashed out of the Hong Kong Open after losing 24-26, 20-22 to South Korea`s Sung Ji Hyun women`s singles second round on Thursday. The 23-year-old Hyderabadi shuttler lost to Sung for the sixth time in her career. However, she still leads the head-to-head record by 8-6. Sindhu, yesterday, had defeated Thailand`s Nitchaon Jindapol to enter the pre-quarterfinals. Earlier in the day, shuttler Kidambi Srikanth defeated his compatriot HS Prannoy in men`s singles clash to enter the quarter-final of the tournament. Srikanth, who had claimed a silver medal at this year`s Commonwealth Games, outwitted fellow Indian H S Prannoy 18-21 30-29 21-18 in a thrilling match, clocking an hour and seven minutes. Srikanth will face either Japan`s Kenta Nishimoto or Thailand`s Kantaphon Wangcharoen.