Nathan Robertson and Gail Emms suffered a shock first-round defeat in the Yonex Korea Open in Seoul.

The Commonwealth champions took the first game 21-11 against Jonas Rasmussen and Britta Andersen before the Danes hit back to win the next two 21-11 21-13.

It means the Olympic silver medallists have just one more event in Singapore next week to find their form before the world championships in Madrid in mid-September.

Andrew Smith put up a brave men's singles fight before being edged out in the second round by Olympic silver medallist Shon Senung Mo of Korea 21-19 22-24 21-14.

But Commonwealth champion Tracey Hallam is through to the third round of the women's singles.

The big result of the day for England was David Lindley and Chris Langridge's win over Indonesian fifth seeds Luluk Hadyanto and Alven Yulianto 21-19 18-21 21-18.

Third seed Emms made up for her mixed disappointment by partnering Donna Kellogg into the second round of the women's doubles with a hard-fought win over Lena Frier Kristiansen and Kamilla Juhl.

In the mixed England's two fifth-seeded pairs of Robert Blair and Natalie Munt and Anthony Clark and Donna Kellogg are through to the second round.