Player unions are organizations that represent the interests of professional athletes in various sports. They negotiate contracts, working conditions, and benefits on behalf of their members, ensuring that players have a collective voice in discussions with teams and leagues. These unions help protect players' rights and advocate for fair treatment. In many sports, such as football, basketball, and hockey, player unions play a crucial role in labor negotiations. They work to secure better salaries, health benefits, and job security for athletes. By uniting players, these unions strengthen their bargaining power and help create a more equitable environment in professional sports.