1970–71 S.L. Benfica season season. They sat in fourth place with a six-point deficit to Sporting. In the second part of the campaign, Benfica regained four points in two match-days, which included a 5–1 win over them. By January, Benfica closed the gap to one point, but a 4–0 loss against Porto stopped them. After a slow February; in March, Benfica caught Sporting at the front and in April, overtook them, after they lost to Porto. On 25 April, Benfica confirmed their 18th league title with Artur Jorge as Bola de Prata. Benfica concluded the season with Taça de Portugal Final, losing it to
1986–87 S.L. Benfica season campaign started with a Clássico with Porto, which ended with a draw. A win in match-day 2 was followed by another draw. Six consecutive wins propelled Benfica into first place isolated, with two points in hand. In the end of November, Benfica contested the Supertaça with Porto and was defeated by 4–2 at home, after a one-all draw in Antas. On the second week of December, in the Derby de Lisboa with Sporting, Benfica conceded their largest loss ever in the Primeira Divisão, losing 7–1. Fans reacted with anger towards Mortimore and ripped flags and scarfs with the club image.