Russian Investigators Deny Doping Whistle-Blower’s Claims

Vladimir V. Putin at the opening ceremony for the 2014 Sochi Games. The I.O.C. and antidoping officials determined that Russia conducted an elaborate doping scheme in Sochi. Russian investigators say that's not true.MOSCOW — The Russian equivalent of the F.B.I. said on Tuesday that it had found evidence rebutting the accusations of systematic doping raised by a whistle-blower who coordinated drug testing during the 2014 Winter Olympics in Sochi.

Russia’s Investigative Committee said in a statement that it had obtained documents relating to the doping samples of 15 Russian athletes who were recently banned for life from the Olympic Games, following revelations that their urine samples had…