 Complete the following phrase:  Porto lost the 1983 Portuguese Cup final to league champions Benfica, which allowed their participation in the 198384 Cup Winners Cup as losing cup finalists. They eliminated Dinamo Zagreb, Rangers, and Shakhtar Donetsk to reach their first European semi-final.ref name198384ref The competition draw paired Porto with the holders Aberdeen, managed by Alex Ferguson. Taking a 10 lead to Pittodrie, Porto resisted to the attacking pressure of their opponents. In the 76th minute, Vermelhinho scored the only goal of the match, which confirmed Portos place in their first European final. We simply were not good enough against Porto, said Ferguson in the aftermath. This feat was met with such enthusiasm that the plane returning the team to Porto could not land because the runway had been invaded by supporters. 