Dina Asher-Smith insists athletics is not in a doping crisis . Claims of systematic drug use in Russia followed an eight-year ban for Tyson Gay 's former coach Jon Drummond . The IAAF has been accused by the World Anti-Doping Agency (WADA) and other sports bodies around the world of being too slow to act on evidence that Russian athletes were using banned substances.
Dina Asher-Smith insists athletics is not in a doping crisis . Claims of systematic drug use in Russia followed an eight-year ban for Tyson Gay 's former coach Jon Drummond . Asher-Smith claims the suggestion there are cracks appearing in the sport is disrespectful to those who are clean .