 A few months after the tournament had concluded in September, the father of Russian player Denis Cheryshev said that his son had been taking growth hormone during the tournament.He was later cleared of doping by anti-doping authorities.On 20 July, the Athletics Integrity Unit (AIU) released details of 120 doping cases with some 85 of the cases involving Olympic and World Championships medallists and almost half (47.5%) involving Russians.