article_snippet: The money keeps growing but the odds are shortening as the richest fight of all time looks set to break the half-billion-dollar barrier.
article_snippet: Floyd Mayweather fight with Manny Pacquiao on May 2 is set to break the half-billion-dollar barrier .
highlights_snippet: Floyd Mayweather and Manny Pacquiao set to meet in the richest fight of all time .
  