ZURICH (Reuters) - Twenty-eight Russian athletes who took part in the 2014 Winter Olympics in Sochi face disciplinary proceedings over possible manipulation of their urine samples, the International Olympic Committee (IOC) said on Friday.
The step follows publication earlier this month of the second and final part of the World Anti-Doping Agency's independent McLaren report into Russian doping.
It found more than 1,000 Russian competitors in more than 30 sports were involved in an institutional conspiracy to conceal positive drug tests over the course of five years..
The IOC said on Friday that in the case of the 28 athletes being investigated, there was "evidence of manipulation of one or more of their urine samples" collected at the 2014 Sochi Games for doping tests.
The IOC added that the 28 cases were not considered positive doping tests but "the manipulation of the samples themselves could lead to an Anti-Doping Rule Violation and sanctions."
IOC president Thomas Bach said: “This is the immediate follow-up to Professor (Richard) McLaren’s Report.
"The IOC will go beyond the findings of the (McLaren) report by re-analyzing all the samples of all the Russian athletes who participated in the Olympic Winter Games Sochi 2014 as well as all those who participated in the Olympic Games London 2012.”
(Reporting by Michael Shields and Brian Homewood; editing by Ken Ferris)