Former Olympic medallist Amir Khan has been banned from participating in any sport for two years over his use of a prohibited substance.

The ban will last until 5 April 2024. It comes after the boxer’s urine sample following his fight against Kell Brook in February 2022 tested positive for ostarine, UK Anti-Doping said in a statement.

Ostarine is a selective androgen receptor modulator (SARM) on the World Anti-Doping Agency’s prohibited list. It is designed to promote muscle building, has a similar effect to testosterone and is banned from use in all sports.

Khan, 36, had claimed his consumption of ostarine was “unintentional” so his case was referred to an independent tribunal.

The panel found two violations – presence and use of a prohibited substance – in January before it confirmed the decision in writing in February. Khan was then given a provisional ban on 6 April.

UKAD chief executive Jane Rumble said: “This case serves as a reminder that UKAD will diligently pursue Anti-Doping Rule Violations in order to protect clean sport.”