Most of the NBA's talent comes from college and high school basketball, although minimum age rules have ended the NBA's practice of drafting players directly from high school beginning in 2006. The NBA's developmental league, now known as the G League, was implemented in 2001 by the NBA to perform the role of a farm system in helping with player development and market reach, but NBA teams more frequently recruit talent from overseas professional leagues, mostly in Europe with a few players being recruited from leagues in Latin America, China, and Australia. Prior to the development of the G League, the Continental Basketball Association had served as a minor league to the NBA.