Napoli must cope without Kostas Manolas for at least two weeks and Victor Osimhen should still be out for 20 to 30 days.
The Greek defender was replaced in the first half against Udinese and the club confirmed he has suffered a first-degree muscle injury.
SportMediaset reports he will be out for at least two weeks, but the broadcaster also revealed Osimhen continues to struggle after the shoulder injury he suffered during international duty with Nigeria.
The report reveals the centre-forward, who is still positive for COVID-19, is still in pain and will be out for 20-30 days.
Napoli host Empoli in the Coppa Italia today, before a home game against Fiorentina in Serie A this weekend.
The duo are not expected back in time for the match against Juventus in the Supercoppa Italiana on January 20.