Beijing on Monday called reports about 23 Chinese swimmers testing positive for a banned substance ahead of the Tokyo Olympics in 2021 "fake news".The sport was rocked at the weekend by revelations that the swimmers tested positive for trimetazidine (TMZ) -- a prescription heart drug that is banned in athletes because it can enhance performance -- before the Games three years ago.The swimmers were allowed to compete in Tokyo after world governing bodies accepted China's findings that they had... Read this story