- Chinese Olympic champion Sun Yang was banned for eight years on Friday for refusing to cooperate with drug-testers.
AFP Sport picks out the key dates in the 28-year-old Chinese swimming star's turbulent career:
- 2009: Breakthrough -
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- 2010: Asian crowns -
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- 2011: Stunning world record -
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- 2012: Double Olympic gold -
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- 2014: Secret drugs ban -
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- 2016: Olympic rancour -
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- 2019: Smashed blood vial -
- 2019: Podium protests -
========================= Horton refuses to pose for pictures with Sun on the medal podium, a protest repeated by Britain's bronze medallist Duncan Scott. Sun tells Scott: "I win, you loser."
- 2020: Eight-year ban -
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