Asbel Kiprop tested positive for the endurance-boosting drug EPO, the Athletics Integrity Unit (AIU) confirmed yesterday, refuting allegations by the track star that his sample might have been contaminated.
Kiprop, a three-time world 1500m champion and 2008 Olympic gold medallist, on Thursday “vehemently denied” doping, suggesting an out-of-competition sample he gave could have been contaminated by two anti-doping agents he suspects might have targeted him for extortion.