The Polish Football League, officially known as Ekstraklasa, is the top professional football division 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 I liga, the second tier of Polish football. 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. The league is known for its passionate fan base and has produced several notable players who have gone on to achieve international success.