His preparations are legendary .
They 've allowed him to remain the undisputed pound - for - pound king of the sport , even as he 's reached an age where many fighters of his ilk begin to see their skills decline .
His preparations are legendary , and they 've allowed him to remain the undisputed pound - for - pound king of the sport , even as he 's reached an age where many fighters of his ilk begin to see their skills decline .