The French Ligue 1 club confined three players returned with a positive virus result on Wednesday.
PSG star players, Di Maria, Neymar tested positive for coronavirus, while the third player is Leandro Paredes, according to report.
This later revealed who the unfortunate players were by respected French newspaper, after they all enjoyed a recent holiday in Ibiza.
However, with the situation on ground, all the players and coaching staff will keep undergo tests in the coming days, PSG further stressed.
The French champions on Monday said that two of their players had tested positive for the virus and gone into quarantine.
Positive tests have already disrupted the start of the new season, with the opening match of the campaign between Marseille and St Etienne postponed when Marseille reported four positive tests.