China's Chen Jin moved closer to sealing his berth at the London Olympics by winning the men's singles title at the Asian Championships on Sunday.
Chen, who was seeded third, defeated fellow countryman and fifth seed Du Pengyu 21-12, 21-18 in China's eastern city of Qingdao.
The 26-year-old Chen needs to stay ahead of rival Peter Gade of Denmark in order to assure his coveted spot at the Olympics this year, the Xinhua news agency said.
Chen said he had his eyes on the Olympics.
"These two months have been continuous matches. I'm tired both physically and mentally," he said. "But there is no other way. For the purpose of Olympic points, I have to go all out."
The Asian Championships are one of the last major tournaments before the London Olympics.
But Chen played down his individual achievement, saying the performance of the Chinese team was more important.
"It doesn't matter who is champion. After all, the top four places in the Asian Championship are ours," he said, referring to the men's singles event.
Chen had a walkover in the semi-finals on Saturday after fellow Chinese badminton superstar and four-time world champion Lin Dan withdrew due to injury.
Lin's spot at the Olympics is assured, as he has already qualified.
In the women's single final, fourth-seeded Li Xuerui shocked by beating world champion Wang Yihan 21-16, 16-21, 21-9 in a hard-fought contest that lasted more than an hour.
The women's doubles final was another all Chinese affair. Top-seeded duo Tian Qing and Zhao Yunlei held off a pair of young upstarts, Bao Yixin and Zhong Qianxin, to win 21-14, 21-15.
"Although they are younger than us, they are very powerful and it was difficult for us to win," Tian was quoted by Xinhua as saying.
Chen Jin of China smashes a shot against compatriot Du Pengyu during their men's finals badminton match of the Asia Championships in China's northeastern coastal city of Qingdao. Chen moved closer to sealing his berth at the London Olympics by winning the men's singles title at the Asian Championships.