World champion Chen Long crashed out of the Badminton World Federation (BWF) Australian Super Series today after a quarter-final defeat to Indonesia's Anthony Sinisuka Ginting.
China's 27-year-old top seed, who won Olympic bronze at London 2012, was beaten 21-14, 21-17 to exit the competition in Sydney.
Despite his high ranking, Chen has not won any of the six Super Series events to be contested this season, with his departure today meaning that no seeded players have made the Australian semi-finals.
Ginting will clash with South Korea's Jeon Hyeok-jin in the last four, after he was awarded a walkover against Hu Yun of Hong Kong.
Denmark's Thomas Cup winner Hans-Kristian Vittinghus also advanced after ousting Japan's Sho Sasaki 21-14, 21-18.
He will play India's Srikanth Kidambi who knocked out South Korean Heo Kwang-hee 21-18, 21-17.
In the women's competition, the top ranked player was also knocked out as Thailand's Ratchanok Intanon went down to India's Saina Nehwal.
Intanon has already won three Super Series crowns this year and the number two seed was favourite after the withdrawal of Spain's top ranked world champion Carolina Marin.
Nehwal, the number seven seed, prevailed, however, with the Olympic bronze medallist winning 28-26, 21-16.
She will play China's Wang Yihan in the semi-finals after her 21-19, 21-15 win over Chinese Taipei's Tai Tzu-ying.
Two more Chinese players will contest the other last four clash, including third-seeded Olympic champion Li Xuerui who beat her compatriot Wang Shixian 21-19, 21-17.
She will play Sun Yu, who got the better of Japan's Akane Yamaguchi 21-18, 21-9.