But the ban has been lifted after a WADA executive committee approved watered down criteria including an acceptance of IOC's Schmid Report and the implementation of a"clear timeline"for allowing access to stored urine samples at RUSADA's Moscow laboratory.
Sharpe says RUSADA has to meet stringent deadlines by the end of December to provide access to its database,and he is adamant WADA cannot afford to alter its conditions again.
"I’m sure there are athletes that do think ‘what’s the point?’,"Sharpe told Fairfax Media.
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"There is a side to this where we all want to see Russian athletes compete but if you don’t hold systemic doping issues to account,athletes won’t have confidence.
"The roadmap WADA initially[used] ensured Russia were going to be held account to has been changed. I understand that has probably been done with a view to trying to find a way forward.
"But I personally believe,when it’s systemic doping,you can’t alter conditions. Conditions are conditions and Russia should be held to account for those conditions.