The 1970s were dominated by Argentine clubs, with the exception of three seasons. In a rematch of the 1969 finals, Nacional emerged as the champions of the 1971 tournament after overcoming an Estudiantes squad depleted of key players. With two titles already under their belt, Independiente created a winning formula with the likes of Francisco Sa, José Omar Pastoriza, Ricardo Bochini and Daniel Bertoni: pillars of the titles of 1972, 1973, 1974, and 1975. Independiente's home stadium, La Doble Visera, became one of the most dreaded venues for visiting teams to play at. The first of these titles came in 1972 when Independiente came up against Universitario de Deportes of Peru in the finals. Universitario became the first team from the Pacific coast to reach the finals after eliminating Uruguayan giants Peñarol and defending champions Nacional at the semifinal stage. The first leg in Lima ended in a 0–0 tie, while the second leg in Avellaneda finished 2–1 in favor of the home team. Independiente successfully defended the title a year later against Colo-Colo after winning the playoff match 2–1. Los Diablos Rojos retained the trophy in 1974 after defeating São Paulo 1–0 in a hard-fought playoff. In 1975, Unión Española also failed to dethrone the champions in the finals after losing the playoff 2–0.