Legislative changes have significantly impacted athletes' rights on an international scale, particularly regarding issues such as contract rights, anti-doping regulations, and unionization. Developments like the World Anti-Doping Agency have strengthened regulations to ensure fair play. Furthermore, athlete advocacy groups and legal protections have expanded rights concerning health, safety, and equitable treatment. These changes encourage transparency and accountability within sports organizations, empowering athletes to voice concerns regarding their treatment and working conditions, ultimately aiming for a more equitable landscape in sports.