CHANGZHOU, China, July 24 (Xinhua) -- China's Chen Yufei is set to face South Korea's world No. 1 An Se-young in the women's singles quarterfinals at the badminton China Open, after both shuttlers defeated respective rivals on Thursday.

Tokyo Olympic champion Chen showed resilience, rallying from one game down to beat teammate Gao Fangjie 13-21, 21-5, 21-9.

"We know each other very well, but a tournament is different from daily training. Whoever performs better on the court will win," said the 27-year-old Chen.

Her next opponent An secured a comfortable 21-13, 21-15 win over fellow South Korean Sim Yu-jin in the second round. Chen, who lost to An in the quarterfinals of the Japan Open just six days ago, is eager for revenge.

"I'll learn from last week's defeat and go all out to challenge her," she added.

In the men's singles, home favorite Shi Yuqi advanced with a straight-game victory over Ireland's Nhat Nguyen. Fifth-seeded Li Shifeng of China also progressed, defeating Ng Ka Long Angus of Hong Kong, China 21-17, 21-9.

Meanwhile, a major upset unfolded as Indonesia's fourth seed Jonatan Christie was edged out by unseeded French shuttler Christo Popov in a three-game battle, 21-12, 13-21, 21-16.

In the women's doubles, top-seeded Chinese duo Liu Shengshu and Tan Ning cruised into the quarterfinals with a dominant 21-9, 21-13 win over American players Lauren Lam and Allison Lee.

China also shone in the mixed doubles, as Feng Yanzhe/Huang Dongping, Jiang Zhenbang/Wei Yaxin and Guo Xinwa/Chen Fanghui all claimed victories to reach last eight. ■