Pacquiao Manny will figh t Vs Antonio Margarito on Nov. 13 for a vacant super welterweight championship, either in Las Vegas if Margarito can get licensed or in Monterrey, Mexico, if he can’t, promoter Bob Arum said. Manny Pacquiao's fight vs. Antonio Margarito (above) will likely take place in either Las Vegas or Monterrey, Mexico. That ends any possibility of a match between Pacquiao and Floyd Mayweather Jr. , the top two boxers in the world, for 2010. Arum said he decided to choose Margarito instead of Miguel Cotto , whom Pacquiao stopped in the 12th round in November, because it would be perceived as a more competitive bout. The bout will be offered on HBO Pay-Per-View. “Cotto was beaten and even with [Hall of Fame trainer] Emanuel Steward now with him, I don’t think people believe that it’s enough to make a difference and I’m not sure they would buy it as competitive,” Arum said by telephone from his vacation home in Los Angeles. “But putting aside the controversy a