7. Bernard Hopkins
Accolades: 52-6-2 (32 KOs); former undisputed World Middleweight Champion
One of the most successful fighters in recent history almost missed out on his career after being sentenced to 18 years for an armed robbery at the age of 17. During his bid, Hopkins discovered his love of boxing and also converted to Islam. He turned pro upon his release in 1988. Since then, the Executioner has racked up over 50 wins, and became the first fighter to unify all four world middleweight titles (WBA, WBO, WBC, and The Ring). His victory over Jean Pascal in 2011 made him the oldest world champion in boxing history at 46 years old. Hopkins continues to fight today and is a sure-fire Hall of Famer once he decides to hang 'em up.