Jannik Sinner Player Reactions Iga Swiatek Clostebol Case WADA Public Reactions Positive Tests Player Cases Clostebol Suspensions Player Criticism Player Treatment Athlete Reactions Athlete Experiences Athletes Public Reaction Athlete Conduct Player Responses WADA Regulations Sinner's Case Player Conduct Regulations World Anti-Doping Agency Jannik Sinner Case CAS Verdict WADA Appeal Athlete Support Athlete Behavior Substance Abuse Transparency Issues Player Investigations Testing Issues Athlete Integrity Clostebol Incident Clostebol Testing
Ferrara’s recruitment marks a bid to restore cohesion to Sinner’s coaching setup before the Cincinnati Masters 1000.