Tokyo:India's Pullela Gopichand has lost in the semi-finals of the Japan Open badminton tournament. Gopichand, the All England Open champion, was beaten by South Korea's Lee Hyun. Lee, the fifth-seeded Korean, used his attacking smashes as the best weapon to score a 7-1 7-4 7-3 victory in 33 minutes. The women's singles final will be an all-Chinese affair between defending champion Zhou Mi, top seed, and 1999 Malaysian Open champion Dai Yun. Zhou amazingly won 15 rallies in a row from a 5-3 lead in the first game to 5-0 in the third on her way to a lopsided 7-3 7-0 7-2 victory over her former teammate Wang Chen, who now represents Hong Kong. Fifth-seeded Dai pulled off her first win in many years and only her second win overall against fellow Chinese Asian champion Zhang Ning with a 1-7 7-5 7-0 7-5 performance.