Two-time champion, Saina Nehwal and H.S. Prannoy progressed to the quarter-finals after registering straight-game victories in women's singles and men's singles events respectively at the USD 120,000 Swiss Open Grand Prix Gold badminton tournament, here.
The Olympic bronze medallist saw off Kristina Gavnholt, world number 41 from Czech Republic, 21-18 21-17 in a 34-minute pre-quarterfinal contest last night. The Indian will next take on seventh seed Japanese Sayaka Sato.
Prannoy, seeded 13th, also prevailed over 2010 Commonwealth Games silver medallist Rajiv Ouseph of England, seeded sixth, 21-13 21-18 to set up a clash with 16th seed Tanongsak Saensomboonsuk of Thailand.
Sixth seed P.V. Sindhu, who also reached the quarterfinals, will meet China's He Bingjiao next.