`` All the supplements were new to me , so I could not remember all of them , '' he explained , adding that he started taking them roughly a month before the Jamaican championships began on June 20 . Former 400 m world record holder testifies about failed test to Jamaican doping commission . Asafa also admitted he could not remember the name of all the supplements he was taking . He was one of five Jamaicans to test positive for a banned substance in Jamaica .
Former 400 m world record holder testifies about failed test to Jamaican doping commission . Asafa also admitted he could not remember the name of all the supplements he was taking . He was one of five Jamaicans to test positive for a banned substance in Jamaica .