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Comments: 0 LAUSANNE, Switzerland â Chinese swimming star Sun Yang was banned for more than four years on Tuesday for breaking anti-doping rules after a retrial at the Court of Arbitration for Sport. The courtâs verdict ends Sunâs hopes of defending his Olympic title in the 200-meter freestyle in Tokyo next month. The ban is backdated to February 2020, meaning Sun could return for the 2024 Paris Olympics, when he would be 32. The judges found Sun âto have acted recklesslyâ when he refused to let anti-doping officials leave his home with a sample of his blood. Sunâs original eight-year...