Mixed doubles shuttlers Chen Tang Jie-Toh Ee Wei have defied the odds to storm into the Olympic Games quarter-finals as group champions.br br On Monday (July 29), the world No. 9 fought brilliantly to stun China's world No. 2 Feng Yanzhe-Huang Dongping 17-21, 21-15, 21-16 in their last Group D match at Adidas Arena in Port de la Chapelle.