sudket prapakamol and saralee thungthongkum captured thailand's first world badminton championship medal on friday by upsetting the two-time olympic champions from china. saralee and sudket rallied to defeat the second seeded zhang jun and gao ling 10-15 15-7 15-11 at the arrowhead pond arena and advance to the semi-finals for the first time. the thais have at least a bronze medal as there is no match for third and fourth place. zhang and gao won gold at both the atens and sydney olympics and captured the 2001 world championship title. they were runner-up at last world championships in 2003.