Johnson tested positive for stanozolol after his world record, gold medal-winning performance in the 100 meters at the 1988 Olympics in Seoul, South Korea. He initially denied knowingly using steroids, but he later admitted it during a Canadian government inquiry. After serving a suspension and being stripped of his medal and record, Johnson returned to racing, only to test positive for testosterone doping in 1993 and earn a lifetime ban.
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Text: Greg Beaton/SI.com
Photo: Heinz Kluetmeier/SI