Napoli's match against Juventus on Sunday is in major doubt after local health authorities blocked Napoli from travelling to Turin due to a possible Covid-19 outbreak.
Both Serie A and Juventus, however, have maintained that the game will not be postponed.
Two Napoli players, Piotr Zielinski and Eljif Elmas, have now tested positive for coronavirus, along with a member of the team's staff.
There are fears that there could be more cases stemming from Napoli's match last weekend against Genoa, a club that has since suffered a serious outbreak of the virus.
Genoa have now confirmed a total of 22 positive cases between players and staff, with the club forced to postpone their match against Torino that was scheduled for Saturday.
Napoli were originally scheduled to travel to Turin on Saturday, where they would undergo further testing ahead of the game at Allianz Stadium.
However, the ASL, the health authority in the region of Campania, has now prevented Gennaro Gattuso's side from leaving Naples as they look to prevent a potential outbreak from spreading.
In a statement on Twitter, though, Juventus have said they will be on the pitch on Sunday, whether or not their opponents join them.
"Juventus Football Club announces that the First Team will take to the field for the Juventus - Napoli match tomorrow at 20:45, as foreseen by the Serie A League calendar," the statement reads.
Serie A would also release a statement later on Saturday which also insisted that the match would go on as planned.
"Lega Serie A confirms that the Juventus-Napoli match, valid for the third matchday of Serie A TIM, remains scheduled for 4 October at 8:45pm," the statement read.
Juventus are also suffering their own issues with Covid-19, though the virus has yet to affect any members of the playing or coaching staff.
The club confirmed on Saturday that two members of their staff had tested positive.
“Juventus Football Club announces that, during the checks provided for by the protocol in force, two staff members tested positive for Covid 19,” read a Juventus statement.
"These are neither players nor members of the technical or medical staff, however, in compliance with the regulations and the protocol, the whole extended team, as of this moment, has gone into fiduciary isolation.
“This procedure will allow all members who tested negative to the controls to carry out regular training and match activities, but will not be allowed contact with outside the group.
“The club is in constant contact with the competent health authorities.”
Napoli are off to a flying start in their Serie A campaign, having won their opening two games with eight goals scored and zero conceded.
Juventus, meanwhile, won their opener under new head coach Andrea Pirlo before drawing Roma 2-2 last weekend, with Cristiano Ronaldo's double saving his 10-man side a point.