Napoli coach Kalidou Koulibaly said, “racist players should be kicked out of stadiums forever”.
Koulibaly and team-mate Victor Osimhen provided social media accounts of the racist abuse suffered by Fiorentina players during Sunday’s 2-1 win.
Nigerian musician Osimhen urged musicians to “understand what it means to hate someone for the color of their skin”.
Fiorentina also issued a statement condemning the incident.
Italian newspaper Gazzetta Dello Sport reports that the international has focused on Andre-Frank Zambo Anguissa, on loan to Napoli from Fulham.
“Fiorentina expresses its deepest condolences and criticism over the racist incident that occurred yesterday during the match against Napoli”, reads the letter from the Serie A club.
“General manager [Joe] Barone, after the game, apologized personally.”
Fiorentina said authorities would provide video footage from the game’s video camera to help identify the “criminals”.
The Italian Football Association [FIGC] has launched an investigation into the incident.
The result was an investigation by Lazio supporters into racist chants targeting Tiemoue Bakayoko, a Chelsea footballer on loan at Milan.
Napoli got back on track to secure their first win in Serie A this season, thanks to goals from Hirving Lozano and Amir Rahmani.