The former executive director of Russia's anti-doping agency (RUSADA) Nikita Kamayev has died two months after resigning his post, the Tass news agency .. The report, citing the former general director of the scandal-hit agency Ramil Khabriev, said it appeared Kamayev's death had been caused by a heart attack. "He complained of heart ache after a skiing session. He has never complained about heart problems, at least to me. ... Russia was suspended from international athletics last November after a special commission of the World Anti-Doping Agency exposed widespread state-sponsored cheating and corruption.