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Sports Reuters Jun 22, 2021 Share Facebook Twitter Copy Link Comments Chinese swimmer Sun Yang (R) looks on next to his counsel Ian Meaking prior to his public hearing before the Court of Arbitration for Sport (CAS) in Montreux, Switzerland, on Nov. 15, 2019. (Jean-guy Python/AFP via Getty Images) World and Olympic champion Sun Yangâs hopes of competing at the Tokyo Games ended on Tuesday when the Court of Arbitration for Sport (CAS) reduced the Chinese swimmerâs ban for doping violations to four years from eight. The shorter sentence, announced by the Swiss-based court in a statement , means Sun...