GOLD COAST, Australia - Singapore began their Sudirman Cup badminton tournament on Monday with a brisk 5-0 demolition of Austria in Group 2B - one level below the 12 sides fighting for the world mixed-team championship.

Danny Bawa Chrisnanta and Tan Wei Han gave the 15th-ranked side a great start with a 21-8, 21-12 drubbing of Roman Zirnwald and Antonia Meinke in the mixed doubles.

Then Ryan Ng took 51 minutes - the longest match - to overcome Leon Seiwald 22-20, 19-21, 21-17 in the men's singles.

Terry Hee and Loh Kean Hean took just two minutes fewer to dispatch Dominik Stipsits Zirnwald 19-21, 21-17, 21-16 in the men's doubles and seal victory.

Yeo Jia Min thrashed Katharina Hochmeir 21-5, 21-8 in the women's singles, before women's doubles pair Ong Ren-Ne and Crystal Wong wrapped up proceedings by beating Serena Au Yeong and Meinke 21-14, 21-18.

Among the Cup contenders, second seeds Denmark beat India 4-1 in Group 1D, losing only the women's singles, in which Olympic silver medallist P.V. Sindhu hammered Line Kjaersfeldt 21-18, 21-6.

In afternoon play, Hong Kong needed to beat Thailand in Group 1A play to avoid elimination, while in Group 1B, Russia were also facing an early exit unless they overcame Chinese Taipei.