In four years, the late boxer Moises Calleros would have been able to participate in competitions once again. Unfortunately, Calleros passed away in March in Mexico, making his eligibility a moot point. UK Anti-Doping (UKAD) recently became aware of his demise and consequently, the details of his case were taken down from their website. Calleros, a former contender for the WBC flyweight title, had tested positive for cocaine in 2023. At the time of his passing, he was 34 years old and held a professional record of 37 wins, 11 losses, and 1 draw, with 20 of his victories coming by knockout.