Like Romans at the Coliseum, boxing fans have always flocked to stadiums or television screens across the globe in search of the fabled knockout. It can take as little as just 5 pounds per square inch to render a human being unconscious, but the blows dealt out in boxing’s blue ribbon division are far more debilitating. Debates have and will always continue to rage as to who the greatest heavyweight of all time is, with the question also often being asked as to who the hardest puncher is. Former WBC heavyweight champion...