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.
The world number one twice tested positive for clostebol - a steroid that can be used to build muscle mass - in March.
The Italian was cleared of fault or negligence by a tribunal last week, with the International Tennis Integrity Agency (ITIA) finding Sinner had been inadvertently contaminated with the substance by Naldi.
Naldi had been applying an over-the-counter spray - given to him by Ferrara - to a cut on his own hand before then carrying out treatments on Sinner.