Indian shuttler H. S. Prannoy suffered an upset in the pre - quarterfinals, while the men's doubles pair of Manu Attri and B. Sumeeth Reddy and the mixed doubles combine of Pranaav Jerry Chopra and N. Sikki Reddy entered the quarter - finals of the Canada Open Grand Prix here.
Second seeded Prannoy was stunned by South Korean ninth seed Jeon Hyeok Jin, who won 17 - 21, 21 - 14, 21 - 13 in an hour and a minute on Thursday to enter the quarter - finals of the $65, 000 event.
The third seeded pairing of Manu and Sumeeth got the better of South Koreans Choi Solgyu and Jae Hwan Kim 21 - 17, 17 - 21, 21 - 13 in 45 minutes at the Canada Olympic Park.
In the semi - finals, the Indian pair will meet another South Korean pair in Kim Won Ho and Seung Jae Seo, who ended the hopes of England's Ben Lane and Sean Vendy with a hard - fought 22 - 20, 21 - 17 victory.
Mixed doubles second seeds Pranaav and Sikki took just 26 minutes to brush aside the Dutch pair of Robin Tabeling and Cheryl Seinen 21 - 11, 21 - 17.
Pranaav and Sikki will meet South Koreans Kim Won Ho and Shin Seung Chan in the semi - finals on Friday.
Kim and Shin defeated Australian sixth seeds Sawan Serasinghe and Setyana Mapasa 21 - 18, 21 - 10.
However, another Indian mixed doubles pair of Kona Tarun and J. Meghana suffered a 9 - 21, 8 - 21 loss to Japanese Kohei Gondo and Wakana Nagahara.
Women's singles shuttler Ruthvika Shivani Gadde was also eliminated, losing to Japanese second seed Aya Ohori.
The Japanese won 21 - 13, 17 - 21, 21 - 19 in a hard - fought contest which lasted 55 minutes.
Also losing were men's singles shuttlers Karan Rajan Rajarajan and Abhishek Yelegar.
Hello EnglishHello English
