The league's disciplinary commission fined football club Verona 12,000 euros ($12,200) for insulting chants directed at the Napoli supporters.
Now they wish to know exactly which part of the stadium and which section of fans were involved in the racist chants.
According to reporters in attendance at the game, a section of the home support launched monkey chants at Nigerian striker Osimhen.
This latest episode of racist chanting at Verona who have a long history of far-right sympathies among their hardcore support.
The Super Eagles forward Osimhen was among the scorers in a thumping 5-2 win for Napoli and in response, he made a poking face in front of the camera to show that their chants would not stop him from scoring.
Last season Verona were ordered to close a section of their stadium for one match after racist chants from a section of their supporters.