After the 1932 championship, talks began among the seven main clubs of the AMEA league to discuss whether to adopt professionalism, like APEA in São Paulo had done before, or not.
However, after the league's statue was first drafted, only América, Bangu and Fluminense accepted it, although they were joined by Vasco da Gama, which reversed its previous position on that matter.
However, only four weeks into the championship, Carioca, Flamengo and São Cristóvão left AMEA and tried to join LCF.
Flamengo, runners-up of the previous year's championship, were accepted, even though they couldn't join the Rio-São Paulo tournament, which was already underway, but Carioca and São Cristóvão had to play in the Subliga instead.
[3][5] The tournament would be disputed in a double round-robin format, with the team with the most points winning the title.