Ligat HaAl, or the Israeli Basketball Premier League, is the top-tier level league of professional competition in Israeli club basketball, making it Israel's primary basketball competition. The league's name is abbreviated as either BSL or ISBL. For sponsorship reasons, the league is also referred to as Ligat Winner Sal, lit. Winner Basket League, with "Winner" being the name of a game operated by the league's primary sponsor, Toto Winner.

The EuroLeague, known as the Turkish Airlines EuroLeague for sponsorship reasons, is a European men's professional basketball club competition. The league is widely recognised as the top-tier men's league in Europe. The league consists of 18 teams, of which 16 are given long-term licences and wild cards, making the league a semi-closed league. The league was first organized by FIBA in 1958, subsequently by ULEB in 2000 and then solely the Euroleague Basketball.