The Nemzeti Bajnokság (lit. 'national championship'), also known as NB I or Fizz Liga after its title sponsor, OTP Bank's webshop subsidiary, is a professional association football league in Hungary and the highest level of the Hungarian football league system. Twelve teams compete in the league, playing each other three times, once at home, once away, and the third match is played at the stadium that the last match was not played at. At the end of the season, the top team enters the qualification rounds for the UEFA Champions League, while the runner-up and the third place, together with the winner of the Magyar Kupa enter the UEFA Conference League qualification rounds. The bottom two clubs are relegated to Nemzeti Bajnokság II, the second-level league, to be replaced by the winner and the runner up of the NB II.