10 Floyd MayweatherJr. Greatest Knockouts

10 Floyd MayweatherJr. Greatest Knockouts Please support my channel. It can buy me another cup of coffee :) Floyd Joy Mayweather Jr. (born Floyd Joy Sinclair; February 24, 1977) is an American professional boxing promoter and former professional boxer. He competed between 1996 and 2015, and made a one-fight comeback in 2017. During his career he won fifteen major world titles including The Ring in five weight classes, the lineal championship in four weight classes (twice at welterweight), and retired with an undefeated record. As an amateur, Mayweather won a bronze medal in the featherweight division at the 1996 Olympics, three U.S. Golden Gloves championships (at light flyweight, flyweight, and featherweight), and the U.S. national championship at featherweight.