BRASILIA, Brazil — This time for Argentina, it was less about Lionel Messi and more about the men behind him. Argentina made the semifinals of the World Cup for the first time in 24 years on Saturday as stubborn defending and clever tactics overcame Belgium in a tight 1-0 victory. Before the quarterfinals, Messi's magic had bailed out the team as it labored unimpressively through the group stage and past Switzerland in the second round, relying on four goals and a couple of assists from its playmaking superstar.