After getting his mouth torn apart by Sonny Liston's jab in Sonny's television debut (in Chicago Stafium), Julio Mederos retired from competitive boxing but continued as a sparring partner for Floyd Patterson and probably others. Patterson brought him into his training camp in Summit, New Jersey for his fight with Brian London and again for the 1960 rematch with Ingo. How do I know? Artificial intelligence told me. Ai is going to be a valuable, albeit imperfect tool for boxing historians.
