The Major League Baseball Players Association (MLBPA) is the labor union representing professional baseball players in the United States and Canada. Founded in 1966, it advocates for players' rights, negotiates collective bargaining agreements, and ensures fair working conditions. The MLBPA plays a crucial role in addressing issues like salaries, benefits, and player safety. The association is responsible for protecting the interests of its members, which include players from all 30 teams in Major League Baseball (MLB). It also works to promote the game and support players in their careers, both on and off the field.