Filipino boxer Manny Pacquiao, left, and Brandon Rios of the United States pose for photos during the weigh-in for their welterweight fight at the Venetian Macao in Macau Saturday, Nov. 23, 2013. Pacquiao and Rios are scheduled to fight in their welterweight boxing match at the casino on Nov. 24. (AP Photo/Vincent Yu)MACAU (AP) — Manny Pacquiao will put his boxing career on the line when he enters the ring for Sunday's bout towards Brandon Rios. He also will likely be representing a nation stricken with the aid of catastrophe.