The head of the International Olympic Committee has confirmed that the Russian athletes banned from the PyeongChang Winter Olympics had "serious indications" of doping in their history.<br /> Thomas Bach's comments came after three top Russian Olympians, including speed skating star, Viktor An were banned from competing -- despite having no publicly disclosed doping violations. <br />To this,... Bach said an IOC review panel took "many different sources into consideration," including any available DNA analysis and the biological passports of individual athletes-- on top of previous drug tests. <br /> The IOC boss said while the excluded athletes did not indicate definite evidence of doping, they were under suspicion or there were other factors that lead to their exclusion.<br />Bach added that the decision to invite only a number of carefully screened Russian athletes had been a "balance." <br />
