• Elite athletes react: Dear IAAF you damaged our sport - this is what we have to say
World class athletes reaction to recent doping claims against track and field governing body IAAF.
According to the reveals the "extraordinary extent of cheating" by athletes at the world and Olympic games.
More than 800 athletes - one in seven of those named in the files - have recorded blood tests described by one of the experts as "highly suggestive of doping or at the very least abnormal".
A third of medals (146, including 55 golds) in endurance events at the Olympics and World Championships between 2001 and 2012 were won by athletes who have recorded suspicious tests. It is claimed none of these athletes have been stripped of their medals.
Also report says that seven London Marathon winners in a 12 year period have showed suspicious blood values.
IAAF have denied all the claims by the Sunday Time and ARD/WDR.