Beginning in the 2017 offseason, NBA rosters expanded from 15 to 17 players with the addition of two spots for players under "Two-Way Contracts."
NBA teams may have up to two players under NBA Two-Way Contracts who will spend the bulk of the season in the NBA G League and not more than 45 days with their NBA team. Two-Way players are paid a corresponding daily amount based on the number of days they play in each league. Only players in their fourth NBA season or earlier are able to sign Two-Way Contracts, which can be for either one or two seasons.
Click here for a list of players that were signed to two-way contracts during the 2017-18 season