Federer, Nadal Weigh In on Sinner's Doping Controversy

Top tennis players express differing views on the handling of Jannik Sinner's positive tests and subsequent clearance.

Nick Kyrgios continues to criticize Sinner, calling for stricter punishment despite tribunal ruling.
Roger Federer questions the consistency of anti-doping protocols, highlighting perceived double standards.
Rafael Nadal defends Sinner, emphasizing trust in anti-doping authorities and Sinner's integrity.
Sinner's coach and team maintain his innocence, attributing positive tests to accidental contamination.
Sinner advances to US Open quarterfinals, set to face Daniil Medvedev amid ongoing scrutiny.