香港羽毛球公开赛：女双头号种子刘圣书/谭宁无缘八强

Group 1 - The top-seeded women's doubles team from China, Liu Shengshu and Tan Ning, was eliminated from the Hong Kong Badminton Open after losing 1:2 to the Japanese pair, Hirokami Rui and Hohara Ayaka, failing to reach the quarter-finals [1] - Liu Shengshu and Tan Ning had recently won the women's doubles title at the badminton world championships, but showed signs of fatigue during the match, winning the first game 21:12 but losing the next two games 19:21 and 16:21 [1] - In other women's doubles matches, Jia Yifan and Zhang Shuxian defeated the American duo Francesca and Jenny Gaye 2:1, while Li Yijing and Luo Xumin won 2:0 against the Indian pair Rutaparna and Swetaparna, both advancing to the quarter-finals [1] Group 2 - In men's singles, Li Shifeng advanced to the quarter-finals by defeating Japanese player Watanabe Koki with scores of 21:12 and 21:19, while Weng Hongyang lost a close match to Indonesian player Fahmi with scores of 20:22, 21:12, and 11:21 [1] - In women's singles, Wang Zhiyi won 2:0 against Japanese player Nippon Natsuki, Han Yue defeated Canadian player Zhang Wenyu 2:0, and Gao Fangjie came back to win 2:1 against Danish player Jexfield, all advancing to the quarter-finals [1] - In men's doubles, Liang Weikang and Wang Chang won 2:0 against Indonesian players Karnando and Maulana, while Huang Di and Liu Yang narrowly defeated teammates Chen Baiyang and Liu Yi with scores of 21:19 and 22:20, setting up a match against each other in the next round [1] Group 3 - In mixed doubles, Jiang Zhenbang and Wei Yaxin won 2:0 against teammates Gao Jiaxuan and Wu Mengying, while Feng Yanzhe and Huang Dongping, as well as Guo Xinwa and Chen Fanghui, also advanced to the quarter-finals with 2:0 victories [2] - Jiang Zhenbang and Wei Yaxin will face Guo Xinwa and Chen Fanghui in the next round [2]