CARACAS, Venezuela -- The United States will open the Copa America on June 28 against Argentina. The U.S. Soccer Federation announced Tuesday night that the Americans were placed into a group with the Argentines for the first round of the 12-nation tournament, the championship of South America. The U.S. team and Mexico are invited guests. Mexico will play Brazil on June 27, the USSF said. Venezuela, the host country, plays the tournament opener against Bolivia on June 26. The remainder of the first round will be determined during Wednesday's draw. The tournament will be played in nine Venezuelan cites and concludes July 15. The United States last competed in the tournament in 1995, when it finished fourth.