The Série A is the top professional football league in Brazil, featuring 20 teams that compete annually. Established in 1959, it is one of the most prestigious leagues in South America and is known for its high level of competition and talented players. Each season, teams play 38 matches, facing each other twice, once at home and once away. The team with the most points at the end of the season is crowned the champion. The bottom teams face relegation to the lower division, Série B, while the top teams qualify for international competitions like the Copa Libertadores.