Former light-welterweight world champion Amir Khan said he would "never cheat" after being handed a two-year ban from all sport for testing positive for a prohibited substance. UK Anti-Doping said on Tuesday that Khan, 36, returned a positive result for the anabolic agent ostarine following his loss to Kell Brook in Manchester in February 2022. Khan, who announced his retirement in May last year, accepted a violation of anti-doping rules but said he had not intentionally ingested the substance, an argument accepted by an independent panel.