Amir Khan has been banned from sport for two years following a positive test for a prohibited substance after his fight with Kell Brook.

Olympic medallist Khan was defeated by Brook in the sixth round at Manchester Arena last February.

Khan subsequently retired in May, at the age of 35. He became one of the youngest champions in British boxing history when he won the WBA title aged 22, five years on from claiming silver at the Athens Olympics in 2004.

However, on April 6 of last year, UK Anti-Doping (UKAD) notified Khan that the tests carried out following his loss to Brook returned an Adverse Analytical Finding (AAF) for ostarine, a substance that is banned by the World Anti-Doping Agency (WADA).

In July, Khan was charged with two offences: the presence of a prohibited substance and the use of a prohibited substance. 

Though Khan accepted the charges, he claimed his ingestion of ostarine had been unintentional, with his case referred to an independent panel.

That panel heard Khan's case in January and in February deemed that while the fighter had not intentionally ingested the substance, he must serve a two-year ban, as well as disqualifying his result against Brook.

Khan's ban commenced on April 6, 2022 and will expire on April 5 next year.

"This case serves as a reminder that UKAD will diligently pursue anti-doping rule violations in order to protect clean sport," said UKAD chief executive Jane Rumble.

"Strict liability means athletes are ultimately responsible for what they ingest and for the presence of any prohibited substances in a sample.

"It is important that all athletes and their support personnel, whatever level they are competing at, take their anti-doping responsibilities seriously. Not doing so risks damaging not only an Athlete's career, but also undermining public confidence in clean sport."