Ekstraklasa is the top professional football league in Poland. Established in 1927, it features 16 teams competing annually for the championship title. The league operates on a system of promotion and relegation with the lower division, known as I liga. Each season, teams play a total of 30 matches, facing each opponent twice, once at home and once away. The team with the most points at the end of the season is crowned the champion. Ekstraklasa is known for its passionate fan base and has produced many talented players who have gone on to play internationally.