1: The Black Power Salute Two African-American athletes raised fists at the 1968 Olympics to protest racial inequality.
2: The Munich Massacre Tragedy struck at the 1972 Olympics when terrorists took hostage and killed Israeli athletes.
3: Steroid Scandal Ben Johnson's gold medal in 1988 was nullified due to doping, exposing a widespread issue.
4: Tonya Harding-Nancy Kerrigan Saga In 1994, a shocking attack orchestrated by Harding on Kerrigan rocked the figure skating world.
5: Bloodied Boxing Match The highly controversial judging controversy between Roy Jones Jr. and Park Si-hun in 1988.
6: East German Doping The systematic doping of East German athletes during the 1970s and 1980s raised ethical concerns.
7: South African Apartheid Apartheid policies led to a 21-year ban on South African participation in the Olympics.
8: Gender Verification Caster Semenya's case in 2009 sparked debates on verifying athletes' gender in sports events.
9: Russian Doping Scandal The Russian doping scandal unveiled state-sponsored doping practices affecting multiple sports.