NEW DELHI, April 15 -- Muhammad Hafiz Hashim upset fourth seed Nguyen Tien Minh of Vietnam to enter the Yonex-Sunrise Asia Badminton Championship quarter-finals here on Thursday.
Malaysian hope Hafiz beat Nguyen 21-19, 14-21, 21-15 and will play Thailand's Ponsana Boonsak in the men's singles quarter-final tomorrow.
In the women's singles, Malaysian Julia Wong Pei Xian failed to stop India's in-form Saina Nehwal, also ranked top in the tournament.
Pei Xian's continuous unforced errors cost her the game, losing out in straight sets 21-14, 21-16 to Saina.
The tournament's major upset was in men's singles when top seed Indonesian Taufik Hidayat crashed out to Chinese Taipei's Hsuan Yi Hsueh 22-20, 21-16.
MATCH RESULTS (Malaysian players only):
Men's singles: Hafiz (MAS) bt Nguyen (VIE) 21-19, 14-21,21-15, Wang Zhengming (CHN) bt Chong Chieh Lok (MAS) 21-13, 21-18.
Men's doubles: Hee Chun-Wee Kiong (MAS) bt Bona-Rian (INA) 21-14, 21-18, Thien How-Soon Hock (MAS) bt Bao Duc-Cao Hieu (VIE) 21-11, 21-13, Hoon Thien How-Ong Soon Hock (MAS) bt Hirokatsu Hashimoto-Noriyasu (JPN) -- 21-17, 21-18, Choo Gun Woo-Yoo Yeon Seong (KOR) bt Goh Wei Shem-Teo Kok Siang (MAS) 21-16, 21-8.
Women's singles: Wong Mew Choo (MAS) bt Zang (SIN) 20-22, 21-9, 21-14.
Women's doubles: Liu Ying-Yin Boo (MAS) bt Alina-Altar (BAN) 21-11,21-13, Kah Mun-Khe Wei (MAS) bt Pooj-Sujana (NEP) 21-3, 21-2.
Mixed Doubles: Chan Peng Soon- Goh Liu Ying (MAS) bt Wang Chia Min- Wang Pei Rong (TPE) 21-9, 21-11.