Whether you are a die-hard Rocky fan or just a fitness buff or just worship Muhammad Ali, you are going to lap up every bit of exciting, hair raising, and inspiring lives of America's greatest boxers here. Boxing, also called as the gentleman's sport, is not only one of the highest paying sports, but also sportier, manlier, and most gratifying than most other games. Yes, even sportier than the make believe game of wrestling or the flesh-ripping rugby! America has been home to some of world's boxing heavyweights including the legendary pugilists like Muhammad Ali, Rocky Marciano, Joe Frazier, George Foreman, Jack Dempsey, Joe Louis, Mike Tyson, and lot more. These award-winning, millions of dollars worthy boxers not only inspired generations of boxing lovers, but also filmmakers and writers who doled out biopic and biographies dedicated to these ring legends. Let us explore all about their timeline, trivia, and interesting facts in the biographies here.