The top seed looked on course to secure victory in the women’s singles competition after she clinched a dramatic opening game 26-24 at the Titan Gym on the campus of California State University.

Li, the London 2012 Olympic champion, bounced back impressively to keep her hopes of winning the Badminton World Federation Super 300 event alive.

The Chinese star claimed the second game 21-15 to force the match into a decider.

The momentum was firmly with Li and she maintained it through the duration of the crucial third game of the final.

It helped her to claim a 24-26, 21-15, 21-11 victory over the home favourite.

South Korea’s Lee Dong Keun also came from a game down to be crowned winner of the men’s singles competition.

Lee lost the opening game 21-14 to The Netherlands' Mark Caljouw, the tournament's sixth seed.

The South Korean would show the kind of form that saw him eliminate China's top seed and two-time Olympic champion Lin Dan in the first round, as he battled back to level the match.

Lee continued to put the pressure on Caljouw and was rewarded as he eventually emerged as a 14-21, 21-17, 21-16 winner.

The trend of comeback victories continued, as China’s Ou Xuanyi and Xiangyu Ren won the men’s doubles competition.

They trailed after the first game to South Korea’s Min Hyuk Kang and Kim Won Ho, but battled back to win a lengthy match.

The Chinese pairing were eventually crowned winners after triumphing 16-21, 21-16, 21-17.

Tang Jinhua and Yu Xiaohan won the women’s doubles event, as the Chinese pairing beat South Korea’s Kim Hye Jeong and Kim So Yeong 18-21, 21-13, 21-15.

Malaysia’s Chang Peng Soon and Goh Liu Ying triumphed 21-19, 21-15 against Germany’s Marvin Emil Seidel and Linda Efler in the mixed doubles.