Jun Hao lost his only previous meeting against world No 11 Chou 21-16, 21-12 when they met at the quarter-finals of the Madrid Spain Masters in March.

The world No 32 will now face China’s world No 4 Li Shifeng for a place in the semi-finals at the Istora Gelora Bung Karno Indoor Stadium in Jakarta.

Jun Hao pulled off a major upset yesterday when he defeated world No 3 and reigning All England champion Jonathan Christie 21-13, 16-21, 21-12 in the Indonesian’s home turf.

Among the other Malaysians in action at the Indonesia Open today are world No 7 Lee Zii Jia, who faces China’s world No 19 Weng Hongyang in another men’s singles last-16 match.

Men’s doubles pair Aaron Chia-Soh Wooi Yik was knocked out of the tournament today after losing 21-16, 21-14 to the Chinese Taipei duo of Lu Ching Yao-Yang Po Han.

Man Wei Chong-Tee Kai Wun and Goh Sze Fei-Nur Izzuddin Rumsani are still flying the flag for Malaysia in the men’s doubles competition, where they will take on Denmark’s Rasmus Kjaer-Frederik Sogaard and Indonesia’s Leo Rolly Carnando-Daniel Marthin, respectively.

The top women’s doubles pair of Pearly Tan and M Thinaah will go up against Indonesia’s Apriyani Rahayu-Siti Fadia Silva Ramadhanti, while in the mixed doubles, Tan Kian Meng and Lai Pei Jing will meet Denmark’s Mathias Christiansen-Alexandra Boje.