Russia says it supports retesting drug test samples from the 2014 Sochi Olympics after accusations it operated a mass doping program at the games.
Grigory Rodchenkov, the former head of the Russian national testing laboratory, told the New York Times he switched tainted urine samples for clean ones for athletes allegedly identified by the Russian government as being part of a state doping system.
Russian Sports Minister Vitaly Mutko tells the state R-Sport news agency "it all needs to be retested, that's easiest."
Rodchenkov has also offered to assist in retesting, and to identify any samples which may have been tampered with.
It is far from clear how any retesting could work since Rodchenkov told the Times he threw away as many as 100 original samples.