The MLS Players Association is the official labor union for Major League Soccer players. The MLSPA represents all MLS players in negotiations with the league over the Collective Bargaining Agreement (CBA), which sets the terms for salaries, free agency, benefits, working conditions, and other employment matters.
The MLSPA has played a crucial role in improving player compensation and rights over the years. Key achievements include higher minimum salaries, the introduction of limited free agency, improved health and retirement benefits, and greater salary transparency through the annual release of player salary data. The union and the league have had contentious negotiations at times, including work stoppages, but have ultimately reached agreements that have supported the league's growth while improving conditions for players.