Categoría Primera A is the top professional football league in Colombia. It features 20 teams that compete annually for the championship title. The league operates on a system of promotion and relegation with the Categoría Primera B, the second tier of Colombian football. The season is divided into two tournaments: the Apertura and the Finalización. Each tournament consists of a round-robin format, where teams play each other, followed by knockout rounds to determine the champion. The league is known for its passionate fan base and has produced many talented players who have gone on to achieve success both locally and internationally.