article_snippet: Pacquiao's welterweight unification bout against Floyd Mayweather is expected to total $300million .
article_snippet: Mayweather's WBA and WBC welterweight world titles against Pacquiao's WBO crown in a unification fight.
highlights_snippet: Manny Pacquiao fights Floyd Mayweather at the MGM Grand on May 2 .
  
highlights_snippet: CLICK HERE for all the latest Manny Pacquiao vs Floyd Mayweather news .