David Tua scored a 19-second KO against John Ruiz

David Tua scored a quick 19-second knockout against John Ruiz in 1996, enhancing his record to 22-0 with 18 KOs. This victory came before Ruiz's trilogy with Evander Holyfield, where Ruiz later won two out of three matches. Tua, who retired in 2013 with a career record of 52-5-2, remains active in training at age 52. He recently shared a video of himself practicing uppercuts with heavy weights. In a recent interview, Tua expressed interest in fighting the winner of the upcoming Jake Paul vs. Mike Tyson match.