S.L. Benfica B six vacancies available in the Segunda Liga (now LigaPro) for the 2012–13 campaign. Of those seven clubs, six were selected to take part in the competition: Benfica, Braga, Marítimo, Porto, Sporting CP and Vitória de Guimarães. LPFP, who organize the professional football tiers in Portugal, announced that the clubs would have to pay €50,000 to register themselves at the league in order to compete in the upcoming season. In addition, LPFP also required them to follow new rules regarding player selection, in which each B team must have a squad with a minimum of ten players formed at the club's
1974–75 S.L. Benfica season home, and Porto lost again, which increased Benfica's advantage to three-points, 31 to 28. However, a draw with Académica de Coimbra on 2 February, cut that lead to two points. In mid February, Benfica visited Estádio das Antas for the Clássico, defeating Porto by 3–0. Benfica had now a three-point lead over Sporting, who overtook Porto for second place. The team continued on their winning run, and on match-day 25, they added two more points in their difference over Sporting, which had lost in Bessa. However, Benfica would experienced a troubled third week of March. First they were knocked-out of