On Friday, April 19, sources told SwimSwam that the gold-medal-winning Chinese women's 800 Free Relay from the Tokyo Olympics would be disqualified and that the silver-medal USA women's team would be bumped up to gold. The next morning, the Herald Sun reported that 23 Chinese swimmers had tested positive for TMZ in January of 2021 at a training camp, just a few months before the Tokyo Olympic Games. Many of those athletes went on to win medals in Tokyo. No one had heard about this until now.