Floyd Mayweather's training plan: How to train like a boxer
Floyd Mayweather speed bag - YouTube
WBA welterweight champion Floyd Mayweather Jr. hits a speed bag as he... News Photo - Getty Images
Floyd Mayweather v Miguel Cotto: Mayweather works out ahead of world title clash - Mirror Online
Floyd Mayweather hits a heavy bag during his workout at his gym Tuesday, April 7, 2015. (Sam Morris/Las Vegas Review-Journal) Follow Sam Morris on Twitter @sammorrisRJ | Las Vegas Review-Journal
Floyd Mayweather Jr. of the U.S. hits a heavy bag during a workout at the Mayweather