Clubs usually qualify for European competitions through performance in their national or regional leagues, with the exception of wild cards.
Clubs usually qualify for these competitions based on their performance in the national or regional leagues in the previous season.
It has historically been the most prestigious competition in European basketball and is widely recognised as the top-tier league in Europe.
At different times, the league has also included clubs from Bulgaria, the Czech Republic, Hungary, and Israel.
Each country generally has its own league system, with various divisions which involve promotion and relegation, as well as playoffs following the regular season.