
World No 1 Jannik Sinner rehires former coach involved in doping incident that led to ban
Sinner parted ways with Ferrara and physiotherapist Giacomo Naldi last year following the investigation into his positive tests for the banned substance clostebol.
'The decision has been made in alignment with Jannik's management team as part of ongoing preparations for upcoming tournaments, including the Cincinnati Open and US Open,' a statement from Sinner's team said.
'Umberto has played an important role in Jannik's development to date, and his return reflects a renewed focus on continuity and performance at the highest level.'
Sinner served a three-month suspension earlier this year after agreeing a settlement with the World Anti-Doping Agency (Wada) in February after authorities accepted that the anabolic agent clostebol had entered his system inadvertently via massages from Naldi at Indian Wells in March 2024.
From left, Giacomo Naldi, Jannik Sinner and Umberto Ferrara at the Australian Open last year.
Wada had appealed to the Court of Arbitration for Sport (CAS) against an independent tribunal's decision last August to clear Sinner of wrongdoing.

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Wimbledon champion Jannik Sinner has reappointed his former fitness coach Umberto Ferrara with immediate effect, the Italian world No 1 confirmed on Wednesday. Sinner parted ways with Ferrara and physiotherapist Giacomo Naldi last year following the investigation into his positive tests for the banned substance clostebol. 'The decision has been made in alignment with Jannik's management team as part of ongoing preparations for upcoming tournaments, including the Cincinnati Open and US Open,' a statement from Sinner's team said. 'Umberto has played an important role in Jannik's development to date, and his return reflects a renewed focus on continuity and performance at the highest level.' Sinner served a three-month suspension earlier this year after agreeing a settlement with the World Anti-Doping Agency (Wada) in February after authorities accepted that the anabolic agent clostebol had entered his system inadvertently via massages from Naldi at Indian Wells in March 2024. From left, Giacomo Naldi, Jannik Sinner and Umberto Ferrara at the Australian Open last year. Wada had appealed to the Court of Arbitration for Sport (CAS) against an independent tribunal's decision last August to clear Sinner of wrongdoing.


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