In light of recent doping cases involving tennis stars Jannik Sinner and Iga Swiatek, Olivier Niggli, Director General of the World Anti-Doping Agency (WADA), discusses the challenges of enforcing anti-doping regulations. He raises concerns about contamination from trace amounts of prohibited substances and hints at the possibility of accepting microdosing. Niggli emphasizes the need for clearer communication in the sport regarding doping cases, highlighting inconsistencies in transparency compared to other sports. The future of doping regulations in tennis may see significant changes.