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
2014–15 S.L. Benfica season April, Benfica drew against Porto (0–0), and kept leading the Primeira Liga, three points ahead. It was the first time since 11 April 2009 that Benfica did not score at home in a league match. On 2 May, Benfica won at Gil Vicente (0–5) with goals from Maxi Pereira (2), Jonas, Luisão and Lima. On 9 May, Benfica beat Penafiel (4–0) with goals from Lima (2), Jonas and Pizzi. On 17 May, Benfica drew at Guimarães (0–0) and became Portuguese champions for a second consecutive time, with one game to spare, three points ahead of Porto, which had drawn at