Serie A Segunda Etapa is the second stage of the Brazilian Serie A league. It is one of the most prestigious football competitions in Brazil, dating back to its inception in 1971. The league consists of 20 teams, each battling it out for the coveted title. Over the years, several teams have enjoyed success in Serie A Segunda Etapa, with Flamengo, Santos, and Sao Paulo being the most successful clubs. An interesting fact about this league is that it follows a double round-robin format, where each team plays against every other team twice, once at home and once away.