The unseeded Malaysians recovered from dropping the opening game to record a 19-21, 21-12, 22-20 triumph to reach the quarter-finals of the men's doubles competition.

They will be joined in the next round by South Korean top seeds Lee Yong-dae and Yoo Yeon-seong, who overcame China's Liu Cheng and Lu Kai 21-11, 21-16.

Jan Ø. Jørgensen of Denmark safely negotiated his last 16 contest in the men's singles draw, proving too strong for Lee Dong-keun, taking 37 minutes to dispatch the South Korean 21-10, 21-14.

Fourth seed Chou Tien-chen of Chinese Taipei was made to work harder for his quarter-final berth, needing three games to get past Hong Kong's Hu Yun 11-21, 21-17, 21-19.

In the women's singles, London 2012 Olympic champion Li Xuerui continued her fine form by cruising to a comfortable 21-15, 21-12 success over Thailand's Busanan Ongbumrungpan.

Former world number one and three-time Asian Games gold medallist Wang Shixian of China is also safely through as she raced to the opening game of her match with Indonesian Lindaweni Fanetri 21-10.

She then wrapped up a straight games victory by taking the second 21-17.

Nozomi Okuhara, world junior champion in 2012, won a titanic all-Japanese affair with Aya Ohori to book her spot in the next round, emerging from a nervy contest on the right side of a 21-8, 16-21, 21-16 scoreline.

Women's doubles top seeds Nitya Krishinda Maheswari and Greysia Polii from Indonesia enjoyed serene progress to the last eight, thrashing South Korean pair Eom Hye-won and Kim Ha-na 21-5, 21-14.

Jung Kyung-eun and Shin Seung-chan, seeded fourth, were another high-profile casualty on day three as the South Koreans were beaten 21-15, 21-9 by unseeded Chinese duo Chen Qingchen and Jia Yifan.

Action at the German Open, which is a BWF Gold Grand Prix event, is due to resume tomorrow and conclude on Sunday (March 6).