Carlos Villagra headed in the opening goal for Nacional in the 38th minute, teammate Sergio Galván Rey added a penalty kick in the 51st and David Córdoba added a goal in injury time.Marcos Lazaga, with a leaping header, got Luqueño’s only goal in the 70th during a match marked by some last-minute scuffling as two players from each side were ejected in the waning minutes for rough play at Feliciano Cáceres Stadium.With the victory, Atlético Nacional leads the group alongside São Paulo of Brazil with 8 points apiece. Only the two top teams make the second round of Latin America’s club championship. Audax Italiano of Chile follows with 7 points and Luqueño 4.Group play concludes on April 23 with Luqueño hosting Audax Italiano, and São Paulo receiving Atlético Nacional. If Nacional doesn’t win that game, while Audax wins, Nacional will still be eliminated.