LAUSANNE — World swimming governing body FINA said it will "implement" the Court of Arbitration for Sport (CAS) decision, which upheld the World Anti-Doping Agency (WADA)'s appeal and handed Chinese swimmer Sun Yang an eight-year ban on Friday.

"FINA has noted the judgement published by CAS today in the case of WADA versus Chinese swimmer Sun Yang," reads a statement released by the sport's ruling body to press.

Notwithstanding any further legal action, and as directed, FINA will implement CAS's decision with regard to disciplinary action against the swimmer

World swimming governing body FINA

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"Notwithstanding any further legal action, and as directed, FINA will implement CAS's decision with regard to disciplinary action against the swimmer. FINA has also noted CAS's provisions with regard to the modification of competition results."

The CAS decided that Sun violated anti-doping rules by refusing to complete a doping test conducted by the international testing company IDTM on Sept 4, 2018, although the Olympic and world champion argued that the Doping Control Officer and her assistants lacked sufficient authorization and credentials.

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The CAS said Sun's results will not be disqualified as there was no evidence showing that the athlete "may have engaged in doping activities since 4 September 2018".