Defending champions China remained on course for a fourth successive Uber Cup women's badminton title yesterday with a crushing 3-0 semi-final victory over Japan.

　　World No 1 Gong Ruina dropped only four points to 11th-ranked Kanako Yonekura in a quick-fire first game before Gao Ling and Huang Sui, badminton's second best doubles pairing, beat Shizuka Yamamoto-Seiko Yamada 15-3, 15-2.

　　World No 2 Zhang Ning encountered greater difficulty against Kaori Mori, ranked 13, but still won 11-7, 11-7.

　　"Today the first singles and first doubles played very well but the second singles was not very good," said China's head coach Li Yongbo.

　　"She didn't play as well as she can. Japan played quite well - they are all hard-running and showed good fighting spirit but China was still the better team."

　　Shuji Matsuno, head coach of Japan's women, tipped China to lift the trophy when the top seeds face the winner of South Korea and Denmark, who play later on Thursday, in Saturday's final.

　　"China is very strong but we tried our best to win this game," he said.

　　Meanwhile Indonesia's team manager has warned his men face a tough task in turning over second seeds Denmark for a chance to extend their 10-year reign in the concurrent Thomas Cup.

　　Speaking after Indonesia's quarter-final triumph over arch-rivals Malaysia, Christian Hadinata said the Danes are a balanced team with strong players throughout.

　　"Denmark have balance and quality in all players, doubles and singles, so we are just going to tell our players to do our best," Hadinata said ahead of today's semi-final.

　　"We played well today but we are still expecting more improvement. But we are still hoping that the players can give their best in the next game," he added.

　　Indonesia's bid for a fifth straight title in the men's badminton showpiece was dealt a heavy blow when they were hammered 5-0 by a rampant Chinese line-up on Monday.

　　China's men, who like the women are all unbeaten here, will play South Korea today.