FC Porto the 1955–56 Primeira Divisão on head-to-head advantage over runners-up Benfica. Later that season, Porto beat Torreense to win its first Taça de Portugal and achieve its first double. As the Portuguese league winner, Porto made its debut in European competitions by qualifying for the 1956–57 European Cup. The club's first participation was short-lived, ending in the preliminary round with two defeats against Spanish champions Athletic Bilbao. A year later, Porto lifted its second Taça de Portugal by beating Benfica 1–0 in the final. The two clubs met again in the following season's final, but this time Benfica took the trophy
1983–84 S.L. Benfica season Football Federation, that joined the Primeira Divisão and La Liga Champions in a two-legged Super cup. Benfica first visited the San Mamés Stadium on the 17, losing 2–1. A week later, they received Bilbao at home and won by 3–1, thus keeping the trophy. Between that, Benfica played the Portuguese Cup Final with Porto, winning one-nil with a goal from Carlos Manuel. The league campaign started in the best of terms, with four consecutive wins, while in the European Cup, Benfica eliminated Linfield in the first round. In October, they dropped the first points, in a draw with Braga, which