Sinner parts with physio & fitness coach after investigation
Jannik Sinner says he is no longer working with physiotherapist Giacomo Naldi and fitness trainer Umberto Ferrara following the investigation into his positive tests for a banned substance.
Jannik Sinner says he is no longer working with physiotherapist Giacomo Naldi and fitness trainer Umberto Ferrara following the investigation into his positive tests for a banned substance.
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