The World Anti-Doping Agency acknowledges it knew of doping concerns involving 23 Chinese swimmers before the 2021 Tokyo Games but failed to alert others. Some of those swimmers later won gold medals.
Kamila Valieva helped Russia win gold in team figure skating at the 2022 Beijing Olympics. It wasn't until after the competition that it was learned she'd previously tested positive for doping.
The 15-year-old athlete tested positive in December for trimetazidine, a drug typically prescribed to much older patients suffering from angina and other heart-related conditions.
The International Olympic Committee says it will abide by a decision that 15-year-old Kamila Valieva be allowed to skate in Beijing but if she wins "no medal ceremony will take place."
Critics are outraged, saying the anti-doping agency for the Games is ignoring the actions of the white athlete on the heels of suspending the Black sprinter this month.
Russia as a country was banned from the 2018 Winter Olympics in South Korea. Its athletes competed under a generic banner. It could happen again in the 2020 Tokyo Games.