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
2008–09 S.L. Benfica season the game between Porto and Sporting, Benfica finished February with 40 points, two fewer than Porto. March was less busy than February, with only three matches. Benfica's first was at the Municipal José Bento Pessoa against Naval. The club took the lead with a third-minute goal from Aimar. Naval evened the score at the start of the second half with a goal by Marcelinho, but Katsouranis scored Benfica's second goal. Miguel Vítor, who assisted the goal, told the media that Benfica wanted to keep winning in case Porto slipped. On 14 March, the club hosted Vitória de Guimarães in their