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
2006–07 S.L. Benfica season Carlos Xistra, who issued 18 yellow cards and three red cards, one of them to Miccoli, who would therefore miss the next match, a visit to Porto. Five days later, Benfica played Porto in the first Clássico of the season. In a high-tension match, Benfica conceded two goals in the first half but equalized in the second half, drawing the game in the 82th minute. However, in injury time, Bruno Moraes scored, bringing the score to 3–2 to Porto. Santos said the result was unfair, adding, "After he got back into the game and managed to level it, 'that' happened