The Czech League, officially known as the Fortuna Liga, is the top professional football league in the Czech Republic. Established in 1993, it features 16 teams competing annually for the championship title. The league operates on a system of promotion and relegation with the Czech National Football League, the second tier of Czech football. Matches are typically held from July to May, with each team playing 30 games in a round-robin format. The league is known for its competitive nature and has produced notable clubs like AC Sparta Prague and SK Slavia Prague, which have a rich history in both domestic and European competitions.