The Brazilian League, officially known as the Campeonato Brasileiro Série A, is the top professional football league in Brazil. It features 20 teams competing annually, with each team playing 38 matches. The league operates on a system of promotion and relegation with the Campeonato Brasileiro Série B, allowing the best-performing teams to move up and the lowest-performing teams to drop down. Founded in 1971, the Brazilian League has produced many famous players, including Pelé and Zico. The league is known for its passionate fans and competitive matches, making it one of the most popular football leagues in the world.