S.L. Benfica 2015, Benfica reported to have 246,401 members; however, after a scheduled renumbering by the club in August 2015, the number decreased to 156,916. In April 2017, Benfica reported they had a total of 184,264 members by 31 December 2016. Benfica has rivalries with Sporting CP and FC Porto, with whom it forms the "Big Three": Portugal's most decorated clubs. None of them have been relegated from the Portuguese league since its establishment in 1934. As Lisbon-based clubs, Benfica and Sporting have shared a rivalry for over a century; it all started in 1907 when eight prominent Benfica players defected to
1977–78 S.L. Benfica season with the same points, although Porto remained leader with a better goal-average. On the final match-day, Benfica won, but so did Porto, which celebrated their first title in 19 years. Despite going unbeaten all season and only conceding 11 goals, they had lost the title by a 15-goal deficit. The squad for the season consisted of the players listed in the tables below, as well as staff member John Mortimore (manager), Rui Silva (assistant manager). Bibliography 1977–78 S.L. Benfica season The 1977–78 season was Sport Lisboa e Benfica's 74th season in existence and the club's 44th consecutive season in the