The UK Anti-Doping Agency (UKAD) issued a four-year ban to Mexican boxer Moises Calleros for testing positive for cocaine, only to later apologize upon discovering that Calleros had passed away three months earlier. Calleros, who lost to Britain's Galal Yafai in April 2023, was found to have cocaine in his system, leading to the announcement of his suspension. UKAD's statement was swiftly removed from their website and social media after learning of Calleros' death, and the agency expressed regret over the error, citing a lack of prior information regarding his passing. The incident has sparked criticism from fans over UKAD's handling of the situation and the severity of the penalty for a cocaine violation. Calleros, who had a 16-year career with a record of 37 wins, 11 losses, and 1 draw, died unexpectedly at the age of 34, reportedly due to a cardiac arrest.