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
1977–78 S.L. Benfica season they had done before, Benfica reacted and won two more matches, one them in Bonfim, where Bento was sent-off. This allowed them to reduce Porto's lead to a point, after their rivals had slipped. This made the visit to Estádio das Antas on 28 May, a title defining match. On that day, Benfica scored first on the 3rd minute with Porto levelling it on the 83rd minute, thus keeping them at the front. From the match, Toni said "It was the divine providence that saved Porto". In the second-to-last match, Porto drew away and Benfica won, which tied both teams