The 32-year-old admitted that he was affected by the rule.

"The umpire made mistakes and I said 'what happened'. But she gave me warnings. (I was) angry," he said.

In the last men's singles match, world number two Chen Jin beat fellow Chinese Chen Long 21-16, 8-21, 21-16.

China effectively secured the three titles after Chinese players swept the respective quarterfinals.

In the women's singles, qualifier Wang Xin stunned French seventh seed Pi Hongyan 21-11, 21-10 following her surprising win over fifth seeded Dane Tine Rasmussen in the second round.

World championships bronze medalist Wang Lin worked her way past South Korean Kim Moon Hi 21-19, 21-18 to face Wang in the last four.

Wang Shixian, 19, overcame All England Open titlist Wang Yihan 21-18, 21-18 to face reigning world champion Lu Lan who brushed aside world number one Zhou Mi from Hong Kong, China, 21-10, 21-17.

All-England Open mixed doubles winners He Bin/Yu Yang eliminated the only non-Chinese pairs Ko Sung Hyun/Ha Jung Eun from Sout Korea 21-15, 21-17 to set up a semifinal clash with Xie Zhongbo/Ya Yawen who pushed aside Zheng Bo/Tian Qing 21-13, 21-18.

Chen Zhiben/Zhang Jinkang and Tao Jiaming/Wang Xiaoli each won their all-Chinese quarterfinals to advance.

Top seeded women's doubles duo Cheng Shu/Zhao Yunlei continued their run for a successful defense of the title as they beat ZhangDan/Zhang Zhibo from Macao, China, 21-18, 21-16 and Pan Pan/Tian Qing clinched a 21-16, 21-19 win over former Olympic champions Yang Wei/Zhang Jiewen who retired from the national team last year.

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