S.L. Benfica Sporting. Followed in Europe, Africa and the Americas, any match between both teams is known as "dérbi de Lisboa" ("Lisbon derby"), "dérbi eterno" ("eternal derby"), "dérbi da Segunda Circular", "dérbi dos dérbis" ("derby of the derbies") – the most important football derby in Portugal. The rivalry between Benfica and FC Porto, which started with a friendly match on 28 April 1912, comes about as Lisbon and Porto are the largest Portuguese cities, respectively. Benfica and Porto are currently the two most decorated clubs in Portuguese football, with the former historically being the most decorated team overall. Any match between the
1978–79 S.L. Benfica season first place with 16 points, one more than Porto. Benfica winning run ended on 21 January with a 1–1 draw against Porto on match-day 17. Mortimore complained of a three-meter off-side in Porto's goal. It left Porto in a lead with a game more, because Benfica's match against Académico de Viseu on 30 December had to be postponed due to stormy weather. In February, Benfica was knocked-out of the Portuguese Cup with a 2–1 loss with Braga, a defeat that Mortimore rated as fair. A week later, another defeat, now for the Primeira Divisão. Benfica lost 2–1 in Barreiros to