Paris - World Triathlon bosses have opened a doping investigation against South African Olympic medallist Henri Schoeman.
Russian hacking group Fancy Bears have claimed the 26-year-old tested positive for the banned glucocorticoid prednisolone during the Games in Rio last year, where he took bronze.
The International Triathlon Union said in a statement that it had been informed about the allegations against Schoeman and immediately launched an investigation, with the athlete's co-operation.