The world No 3 pair lost 21-18, 21-19 to Denmark’s world No 20 pair, Mads Vestergaard-Christine Busch, in just 38 minutes.

The Malaysians had beaten the same pair in last year’s Thailand Open.

Malaysian pairs in the men’s doubles category fared better, with most progressing to the second round.

Second seeds Goh Sze Fei-Nur Izzuddin Rumsani breezed past French pair Adam Eloi-Leo Rossi yesterday, while Kang Khai Xing-Aaron Tai pulled off an upset by defeating last week’s Thailand Open finalists, Denmark’s William Kryger Boe-Christian Faust Kjaer, 12-21, 21-11, 21-17, in a 48-minute match today.

Other pairs who qualified for the second round include Choong Hon Jian-Muhammad Haikal, Low Hang Yee-Ng Eng Chong, and Man Wei Chong-Tee Kai Wun.

Favourites Aaron Chia-Soh Wooi Yik are scheduled to play against Taiwan’s Chiu Hsiang Chieh-Wang Chi Lin in their opener later today.

In another mixed doubles match, Wong Tien Ci-Lim Chiew Sien also made it to the second round after defeating a Thai pair.

Newly crowned Thailand Open champions Pearly Tan-M Thinaah will begin their campaign later today.

Meanwhile, in the women’s singles, K Letshanaa started strongly by taking the first game against China’s Han Qian Xi, but eventually lost 21-10, 19-21, 12-21 in a gruelling 64-minute match.