WORCESTER badminton ace Simon Archer and his partner Donna Kellogg lost in the semi-finals of the Thailand Open.

After beating fellow English pair Robert Blair and Natalie Munt 15-8, 15-12 in the quarter-finals, Archer and Kellogg lost 15-6, 13-15, 15-5 to the Thailand pair of Sudket Prapakamol and Saralee Thungthongkam.