Chen trailed by 11-16 in the second game, before bouncing back to cap her victory of 21-17.

"I didn't perform so well as in previous matches, thus suffering more difficulties today, but I tried my best to motivate myself," Chen pointed out.

In Sunday's quarterfinals, Chen will face Japan's highest-ranked Akane Yamaguchi. Chen won the last time in straight sets in the team final.

Talking about the rematch, Chen showed her confidence. "Maybe my opponent will make some changes tomorrow, but I will fully prepare myself for this tough match," she said.

Prior to Saturday's duel, He lost to Okuhara in the Asian Games team final, where China fell 3-1 to Japan to be dethroned for the first time in two decades.

This time, the proceedings underwent in a simpler manner, as Okuhara triumphed 21-10, 21-12 in 34 minutes.

World No. 1 Tai Tzuying, along with Pusarla V. Sindhu and Ratchanok Intanon, also made into the last eight.

In women's doubles quarterfinals, third-seeded Chen Qingchen/Jia Yifan of China eased past India's Ashwini Ponnappa and Sikki N. Reddy 21-11, 24-22.

Tang Jinhua and Zheng Yu surrendered two match points and lost to home favorites Greysia Polii/Apriyani Rahayu 18-21, 24-22, 21-16 in grueling 80 minutes.

"As it's the first time that we pair up in major tournaments, we want to challenge highly-ranked opponents in the match," said Tang.

"Despite the loss, we felt a boost in our confidence. It earned us huge experience beneficial to the future," Zheng pointed out.

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