Robertson and Emms stride through

Emms and Robertson have looked in fine form all week

Nathan Robertson and Gail Emms looked in decent form as they won their mixed doubles quarter-final in the All England Championships in Birmingham.

The 2004 Olympic silver medal winners and 2006 world champions eased past their compatriots the match 21-14 21-16 in little over half-an-hour's play.

They will now face Chinese fifth seeds He Hanbin and Yu Yang in the semis.

Anthony Clark and Donna Kellogg failed to join them as they lost 21-18 14-21 17-21 to Xie Zhongbo and Zhang Yawen.

The result set up an all-Chinese semi-final as Xie and Zhang progressed to face top seeds Zheng Bo and Gao Ling.