(Photo credit: Idris Erba/Mayweather Promotions) By Allan Fox: Last Saturday night, WBA/WBC welterweight champion Floyd Mayweather Jr. (49-0, 26 KOs) tied the late great former heavyweight champion Rocky Marciano’s record of 49-0 that he set 60 years ago in 1955, when the 38-year-old Mayweather finished his career with one-sided 12 round unanimous decision win over Andre Berto (30-4, 23 KOs) at the MGM Grand in Las Vegas, Nevada.
Marciano’s career record was 49-0, 43 knockouts. Like Mayweather, Marciano still had a lot left in the tank when he retired. He likely could have kept winning for a little while longer if he had the desire to continue to the sport.