Basel, March 12 Indian shuttler Kiran George was eliminated in the men's singles pre-quarterfinals after losing to Hong Kong's Jason Gunawan, while young Tharun Mannepalli advanced to the second round after his opponent Kenta Nishimoto retired in the deciding set at the Swiss Open here.
George fought hard but lost 18-21, 21-16, 16-21 in a round-of-16 match that lasted 70 minutes.
India's men's doubles pair of Hariharan Amsakarunan and M.R. Arjun also lost in the pre-quarterfinals, going down to Chen Cheng Kuan and Lin Bing-Wei of Chinese Taipei 17-21, 11-21 in 32 minutes.
The top Indian men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty will face Japan's Hiroki Okamura and Kyohei Yamashita in a pre-quarterfinal match later in the evening.
The 24-year-old Mannepalli, ranked 43rd in the world, was leading 16-21, 21-16, 7-2 when the fifth-seeded Nishimoto retired from the round of 32 match on Wednesday night due to a shoulder injury.
Mannepalli, who had reached the semifinals of the Macau Open last year, will next face Malaysia's Justin Hoh.
In women's singles, Malvika Bansod failed to get past Thailand's world No. 4 Pornpawee Chochuwong, losing 11-21, 15-21 in a one-sided match. It was her fourth defeat against the Thai player.