Those strong performances earned him selection to the powerful national team, which was one of the world's top teams in the 1950s and 1960s. For example, Argentina finished second and earned team silver team medals at three straight Olympiads: Dubrovnik 1950, Helsinki 1952, and Amsterdam 1954. For Moscow 1956, Sanguineti made his debut on the first reserve board, and played sensationally to win the gold medal with a score of 9/11. Argentina finished fourth.