human
How does one become a professional baseball player?
assistant
One way to become a professional baseball player is through playing in the Major League Baseball (MLB) minor league system. This involves signing with an MLB organization, attending a college or university for at least three years, and then being drafted by an MLB team. Once drafted, players must go through the Minor League Baseball (MiLB) system which consists of several levels before they reach the majors. The first level is the rookie leagues where players are assigned to teams and play against other rookies from around the country. After that, players move up to the Class-A, Class-AA, and Class-AAA levels before finally reaching the Majors.