China's Olympic and world champion Zhang Ning was crowned in the women's singles event at the Japan Open badminton tournament here on Sunday as she ended the winning streak of fellow Chinese Xie Xingfang with an 11-7, 11-8 victory in the final.

Later in the men's final, Lin Dan captured the singles title in another all-Chinese final againstthird-seeded compatriot Chen Hong, who was trailing 15-4, 2-0 before retiring due to fever.

Top seed Zhang, who surrendered her world number one ranking to Xie this week, used effective drops to Xie's backhand front to seal upthe 37-minute match.

"I reached the final in Japan for the first time and went on to win the title. I'm really happy about it," said Zhang.

The 29-year-old veteran moved Xie from the baseline to the front with an array of soft-touched shots combined with smashes and disguised overhead drops.

"In the beginning, I felt she was very tired, she didn't move as quickly as she usually does, soI didn't change my tactics. I just played my usual game to beat her today," added Zhang.

It was Zhang's first title since winning the Singapore Open in November, while Xie had previously won six straight Grand Prix titles including the most prestigious All England last month, and 34 straight matches.

In the men's doubles events, top seeds Danish duo of Jens Eriksen and Martin Lundgaard Hansen beat Indonesia's Candra Wijaya and Sigit Budiarto 15-10, 15-3 in the final, and Wang Wei and Zhang Jiewen won over fellow Chinese Wei Yili and Zhao Tingting 15-12, 15-2.

Editor: Donald