So, in 1987 CBF was running out of money and going through a massive crisis unable to pay for the clubs expenses and the competition
>13 clubs decide to create Copa União, a smaller competition with better financial appeal between the clubs with biggest supporters
>Since this was based on popularity Guarani, the vice of 86 and América, semifinalist werent invited
>Keep in mind clubs like Botafogo and Coritiba overturned their relegations at escritório so the idea of 28 team tournament idealized in 86 was doomed from the start
>So this cup organized by Clube dos 13 was Módulo Verde
>CBF put all the smaller clubs who weren't contemplated by Clube dos 13 shenanigans at Módulo Amarelo, including teams like Guarani, Vitória, Atlético Paranaense, Sport (first 3 should've rightfully played Módulo Verde or whatever elite Módulo they organized)
>the semifinalists of 86, América, REFUSED to play Módulo Amarelo
>HOWEVER by the rules previously stablished CBF should've invited Vitória and Ponte Preta, since Sport was RELEGATED in 1986 finishing the 2nd phase as one of the last 2 teams in the groups
Thus concluding Sport was massively benefited by a tapetão or virada de mesa in 86 that culminated with their title in 87, it's not their fault but that's what happened