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
2006–07 S.L. Benfica season Thursday, Benfica played Paris St-Germain at the Parc des Princes. Benfica scored first with header from Simão in the tenth minute, but PSG reacted with two goals in five minutes before half-time. The score remained unchanged, giving Benfica a one-goal disadvantage. On 12 March, Benfica met União de Leiria at home for match-day 21. Benfica won 2–0 with goals from Simão and Petit, keeping up the pressure on Porto. Three days after Leiria, Benfica received PSG for the second leg. Benfica scored their first goal in the 12th minute and another before half-time. However, the Parisians got back into the