Liga Endesa is the top professional basketball league in Spain. Founded in 1983, it features 18 teams competing annually for the championship title. The league is known for its high level of competition and has produced many talented players who have gone on to play in the NBA and international competitions. The league operates under the governance of the Spanish Basketball Federation and follows a regular season format, followed by playoffs to determine the champion. Real Madrid and FC Barcelona are among the most successful teams in the league's history, contributing to its popularity and prestige in European basketball.