Moisés ‘Taz’ Calleros, a Mexican professional boxer, has been suspended for four years due to a doping violation by the United Kingdom Anti-Doping Agency (UKAD). The boxer died suddenly on March 1 at the age of 34 after suffering cardiac arrest, with his lifeless body found in a home in Juárez. The suspension was announced after a positive test for cocaine and benzoylecgonine in his last fight.
Moisés ‘Taz’ Calleros, a professional boxer from Mexico, has been banned from competing in any sport that adheres to the World Anti-Doping Code for four years due to Anti-Doping Rule Violations (ADRV) resulting from the presence and use of a prohibited substance. The suspension was announced by the Anti-Doping Agency of the United Kingdom.
In his last fight, which he lost by technical knockout in the fourth round, Calleros faced British boxer Galal Yafai in April 2023 at the O2 Arena in London. Yafai later revealed the boxer’s death, stating, “He died in March in case you didn’t already know! Rest in peace.”
Moisés ‘Taz’ Calleros passed away in March in case you didn’t already know! Rest in peace
Yafai notified the UKAD of Calleros’s death, saying, “He died in March in case you didn’t already know! Rest in PEACE.”
UK Anti-Doping (UKAD) has today received information regarding the death of Mexican professional boxer Moisés Calleros
UKAD apologized and recanted, stating, “UK Anti-Doping (UKAD) has today received information regarding the death of Mexican professional boxer Moisés Calleros. UKAD received this information shortly after publishing details of the outcome of a case involving the Mr Calleros following UK anti-doping rules. Sadly, UKAD had no information about Mr Calleros’ sad passing at the time of publication and has now removed all details of this case from its channels.”
Moisés ‘Taz’ Calleros’ career in boxing
Moisés ‘Taz’ Calleros boxed for 16 years with a record of 50 fights as an amateur and 58 as a professional (36 wins, 11 losses and one draw). In 2020, he fought Julio César Martínez for the World Flyweight Championship, and he also fought against Japanese boxer Ryuya Yamanaka for the minimum weight title of the World Boxing Organization (WBO).
