SEOUL - British mixed doubles team Suzanne Rayappan and David Lindley pulled off a shock three-set win over Indonesia's world number one pair Lilyana Natsir and Nova Widianto on Thursday at the Korea Open.

The unheralded pair won a tense first set 21-17 before being outclassed in the second, dropping the frame 11-21.

But Rayappan and Lindley rallied late in the third set to take it 22-20, prompting Lindley to toss his racket and roll on the floor in delight after booking a spot in the quarter-finals.

World number two women's doubles pair Zhang Jiewen and Yang Wei of China made short work of Singapore's Jiang Yanmei and Li Yujia, cruising into the last eight with a 21-10 21-11 victory.

The Chinese were dominant at the net and the duo from Singapore had no answer to their powerful smashes.

World number one men's double pair Fu Haifeng and Cai Yun of China also moved into the final eight with a 21-19 21-13 win over Hendra Aprida Gunawan and Joko Riyadi of Indonesia.

In the men's singles, world number one Lin Dan of China advanced with a win over Przemyslaw Wacha of Poland.