National Basketball Association keep’s on changing to bring a different rosters instead of their regular season line-ups. Typically consisting of a mix of rookies, unsigned free agents and second year players, this is a series of off-season competitions.
Talking about summer leagues it have existed for decades, sometime back there was not organized structure, with leagues sometimes overlapping and not officially coordinated. The first ever league was held in Las Vegas back in 2004, so far it is the largest league with about 22 teams plus of all star team participating.
One of the best thing about NBA any team can be signed or can sign a free agent after the league is over, not just the one he played for in summer league. If a player do it best in a previous league his chances of being singed to another team are higher, it deeps on one’s performance. The leagues consists of handful of games per team. Unlike regulation NBA games, which are 48 minutes long, games only last 40 minutes.