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Anti-doping leader: Russian probe has not been compromised

An international anti-doping leader called "nonsense" the suggestion that the release of draft letters urging Russia's total ban from the Olympics have compromised the investigation into Russian doping.

The Institute of National Anti-Doping Agencies is one of several anti-doping and athletes' groups to draft letters calling for the ban. They plan to send the letters to the International Olympic Committee only if the investigation, due out Monday, reveals evidence of state-sponsored doping throughout Russian sports.

A group of Olympic leaders, including IOC members and swimming's international federation, have released statements suggesting the draft letters have undermined the credibility of investigator Richard McLaren's report.