Jannik Sinner Reappoints Former Fitness Coach Umberto Ferrara Amid Return to Form

• Jannik Sinner has reinstated Umberto Ferrara as his fitness coach, effective immediately, ahead of key upcoming tournaments.

• Ferrara was previously dismissed alongside physiotherapist Giacomo Naldi following an investigation into Sinner’s positive test for the banned substance clostebol.

• Sinner served a three-month suspension after an independent tribunal cleared him of fault, accepting that clostebol entered his system inadvertently via contaminated massage spray.

• The move reflects Sinner’s focus on continuity and high-level performance as he prepares for events like the Cincinnati Open and U.S. Open.

• Despite the past controversy, Ferrara played a vital role in Sinner’s development and is now back in his support team following Wimbledon success.

Jannik Sinner, Italy’s world number one and Wimbledon champion, has officially reappointed his former fitness coach, Umberto Ferrara, signaling a renewed commitment to consistency and peak performance. The decision, confirmed by Sinner’s team on Wednesday, comes as part of preparations for major upcoming tournaments including the Cincinnati Open and the U.S. Open.

Ferrara’s previous departure, alongside physiotherapist Giacomo Naldi, followed an investigation into Sinner’s positive test for clostebol—an anabolic agent found to have entered his body inadvertently through a massage spray applied by Naldi. While Sinner accepted a three-month suspension early this year, an independent tribunal ultimately cleared him of any fault or negligence, a verdict currently under appeal by the World Anti-Doping Agency (WADA).

Throughout the controversy, Sinner maintained that the contaminated spray, supplied to Naldi by Ferrara, was responsible for the positive test. Having returned to competitive play in May, including a runner-up finish at the French Open and a landmark Wimbledon victory, Sinner emphasized Ferrara’s critical contribution to his development.

This move to reinstate Ferrara highlights Sinner’s desire to consolidate his coaching team and maintain the stability necessary for sustained success at the highest level of tennis.