The former Tottenham centre-half did not cover himself in glory as his new club slumped to a 2-1 defeat to modest Sassuolo at the weekend.
The former Steaua Bucharest centre-half was captured by the North Londoners in the summer of 2013 but failed to convince the Spurs fans of his abilities over two forgettable seasons at White Hart Lane.
Chiriches was offloaded over the summer to the Serie A side, with the defender starting in his team’s 2-1 defeat to Sassuolo in the opening fixture of the new campaign for the Naples-based outfit.
The Romania international started at the heart of the Napoli defence alongside Raul Albiol, but struggled to contain the pace and movement of Sassuolo attacking pair Gregoire Defrel and Domenico Berardi.
Highlights of the game can be seen above, with Marek Hamsik giving the visitors an early lead.
However, things started to unravel after this, with Antonio Floro Flores equalising with a smart volley. Chiriches is seen meandering back and making no attempt to close the attacker’s space.
The decisive goal was struck by substitute Nicola Sansone, with the former Tottenham man out of position and doing little to prevent the opposition goal.
The fact that Chiriches played ahead of man-mountain Kalidou Koulibaly was an interesting decision by coach Maurizio Sarri, with the Romanian having work to do to convince the Napoli fans of his worth.