FILE - In this file photo dated Monday, Aug. 8, 2016, China's gold medal winner Sun Yang waves during the medal ceremony for the men's 200-meter freestyle final during the swimming competitions at the 2016 Summer Olympics, in Rio de Janeiro, Brazil. China’s star swimmer Sun Yang risks being banned from the Tokyo Olympics for the alleged destruction of a doping control sample, according to information made available Wednesday March 13, 2019, from the Court of Arbitration for Sport.
FILE - In this file photo dated Monday, Aug. 8, 2016, China's gold medal winner Sun Yang waves during the medal ceremony for the men's 200-meter freestyle final during the swimming competitions at the 2016 Summer Olympics, in Rio de Janeiro, Brazil. China’s star swimmer Sun Yang risks being banned from the Tokyo Olympics for the alleged destruction of a doping control sample, according to information made available Wednesday March 13, 2019, from the Court of Arbitration for Sport. Martin Meissner, FILE AP Photo
FILE - In this file photo dated Monday, Aug. 8, 2016, China's gold medal winner Sun Yang waves during the medal ceremony for the men's 200-meter freestyle final during the swimming competitions at the 2016 Summer Olympics, in Rio de Janeiro, Brazil. China’s star swimmer Sun Yang risks being banned from the Tokyo Olympics for the alleged destruction of a doping control sample, according to information made available Wednesday March 13, 2019, from the Court of Arbitration for Sport. Martin Meissner, FILE AP Photo