There are reports Jonathan de Guzman was in a physical altercation with Napoli director Cristiano Giuntoli.
The saga has been bubbling on throughout the summer, as De Guzman was all set to join Bournemouth on loan with option to buy when he didn’t catch his flight.
Mystery surrounded what caused the transfer to break down, but there were reports of an injury note from the Dutch Federation.
According to the Corriere dello Sport, De Guzman got into a heated argument with director of sport Giuntoli at the Castelvolturno training ground earlier this week.
Teammate Juan Camilo Zuniga had to step in, preventing the situation from escalating into a full-blown fight.
De Guzman had also rejected a move to Sunderland, while his preferred option Olympique Marseille never materialised.