Kiprop, the 2008 Beijing Olympics 1,500m champion, was tentatively suspended by IAAF's Athletes Integrity Unit (AIU) in May last year after having tested positive to
blood boosting Erythropoietin (EPO) in an out-of-competition test in Iten in November 2017.In his defence, Kiprop continues to maintain his position that the alleged EPO doping in the sample of 27th November 2017 is either (a) natural (endogenous) EPO (not artificial) or (b) the sample used to effect the test was not his sample, or otherwise was contaminated, or mixed up with other sample(s) or (c) the procedure used to test the alleged artificial EPO was flawed with the result of mistaking natural EPO as artificial EPO.
Kiprop was tentatively suspended by International Association of Athletics Federations' (IAAF) Athletes Integrity Unit (AIU) in May last year for having tested positive to EPO, a
blood boosting banned substance in an out-of-competition test.
Millar served a two-year ban from 2004 to 2006 and was banned from the Olympics for life after admitting taking performance-enhancing and
blood boosting drug EPO.
Fager strongly defended a "60 Minutes" special that will air Sunday featuring former teammate Tyler Hamilton alleging the usage of EPO - a
blood boosting steroid - by Armstrong, the seven-time Tour de France champion and cancer-survivor.
Reports in the United States claim Jones has tested positive for EPO, a
blood boosting hormone.
But the 27- year old admitted months later that he had used the
blood boosting drug in preparation for the victory.