Moscow: The head of Russia's anti-doping laboratory resigned late Tuesday, hours after his laboratory was suspended over accusations it was part of state-sponsored doping programme that experts fear could snowball into an international crisis for the sport.
The World Anti-Doping Agency (WADA) has accused Grigory Rodchenkov of being at the heart of a scheme to cover up widespread use of illegal drugs among Russian athletes, including deliberately destroying positive test samples.
WADA suspended Moscow's heavily criticised anti-doping laboratory on Tuesday, the day after releasing its explosive report accusing Russian athletics of corruption akin to that which plagued top-level sport in Communist East Germany in the 1970s and 80s.
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