The French basketball league system is a series of interconnected competitions for professional basketball clubs in France. The system has a hierarchical format with a promotion and relegation system between competitions at different levels. Some of the competitions are: the LNB Pro A, LNB Pro B, Nationale Masculine 1 (NM1), the Nationale Masculine 2 (NM2), the Nationale Masculine 3 (NM3), and the LNB Espoirs.