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
2003–04 S.L. Benfica season should have been a win for Benfica, and that Porto had been lucky. A week later, Benfica met Nacional again, now on their home turf. After conceding an early goal, Benfica fought back to a 2–1 lead; only to allow Nacional to score two goals within two minutes and win the game. Because two goals had come from corner-kicks, Camacho was questioned if the centre-backs were at fault; which he answered: "We conceded three goals from set pieces, and that could not be the centre-backs' fault, because we defend them with 5 or 6 players – so they alone cannot