News > Sinner fired two of his team members over his positive steroid tests in March

Sinner fired two of his team members over his positive steroid tests in March

Jannik Sinner fired his fitness trainer Umberto Ferrara and his physiotherapist Giacomo Naldi, who had been at the 23-year-old Italian’s side during his rise over the past two years, which included his first Grand Slam title at the Australian Open in January and ascension to the No. 1 ranking in June. At his pre-US Open news conference, Sinner said he knew he was innocent but worried about the case’s outcome until he found he wouldn’t be suspended.