China’s Sun Yang has doping ban reduced but will still miss Tokyo Olympics

World and Olympic champion Sun Yang’s hopes of competing at the Tokyo Games ended on Tuesday when the Court of Arbitration for Sport (CAS) reduced the Chinese swimmer’s ban for doping violations to four years from eight.World and Olympic champion Sun Yang’s hopes of competing at the Tokyo Games ended on Tuesday when the Court of Arbitration for Sport (CAS) reduced the Chinese swimmer’s ban for doping violations to four years from eight.