When asked to name his own top five fighters, ‘Bud’ felt three former heavyweight champions have earned their places. Crawford made history when he dethroned Canelo Alvarez and captured the undisputed super-middleweight world title last September, becoming the first post-war three-weight undisputed titleholder. Instead, the 38-year-old gave props to three former heavyweight world champions: Muhammad Ali, Roy Jones Jr and Joe Louis. I got to put Sugar Ray Robinson, I got to put Roy Jones Jr. in his prime. Ali and Louis spent their entire legendary careers competing at heavyweight, while Jones Jr competed in the banner division just once, becoming the first former world middleweight champion to capture world heavyweight gold in over a century.