The Uzbekistan wrestler Soslan Tigiev has been stripped of the bronze medal he won at this year's London Olympics after testing positive for a banned substance.
Tigiev, who was third in the men's freestyle 74kg category, tested positive for methylhexaneamine after his fight on August 10th against Hungary's Gabor Hatos who will now be awarded the bronze medal.
Tigiev became the second athlete from the London Olympics to be stripped of a medal because of a doping violation.
Belarussian Nadezhda Ostapchuk had her gold in the women's shot put taken back after testing positive for the steroid metenolone. Valerie Adams of New Zealand was upgraded to gold.
Twelve athletes were excluded or left the Games after testing positive for banned drugs or admitting to it.