Floyd Mayweather Jr is an American boxing champion who is regarded as one of the best pound-for-pound fighters of his generation. A sport that runs in his blood, Mayweather has given everything to it, his blood, his sweat, his hard work and his life. His career graph is an illustrious one, studded with cent percent victories in his 49 outings, of which 26 came by knockout. He has major world titles in his belt including WBC super featherweight champion, WBC lightweight champion, WBC super lightweight champion, IBF welterweight champion, WBC welterweight champion, WBC light middleweight champion, WBA (Super) light middleweight champion, WBA (Super) welterweight champion and WBO welterweight champion. Nearly every time in the ring, Mayweather has managed to give a flawless performance that has been the result of his blazing speed, punishing power and unbelievable ring generalship. His fights are a fistic masterpiece of brilliance that very few can claim to possess. Despite his age, Mayweather is a nightmare for opponents in the ring even today. What is even more surprising to note is that even at 40, he looks as hale and hearty and fit as the day he first entered the ring!