Paris Saint-Germain revealed on Wednesday that three players have tested positive for the coronavirus, with reports claiming the trio are Neymar, Angel Di Maria and Leandro Paredes, but PSG did not reveal any names.
"Three Paris Saint-Germain players have confirmed positive Sars CoV2 tests and are subject to the appropriate health protocol," PSG said in a statement.
"All of the players and coaching staff will continue to undergo tests in the coming days."
The French champions, who last month lost the Champions League final to Bayern Munich, had already said on Monday that two unnamed players had reported back with coronavirus symptoms following a holiday.
L'Equipe reported the players in question were Argentine duo Di Maria and Paredes. Now it claims Brazilian forward Neymar is the other squad member to test positive.
The three were among several PSG stars who travelled to the Spanish Mediterranean island of Ibiza last week for a holiday in the aftermath of their Champions League campaign, mixing with friends and family after spending the previous weeks isolated in a secure bubble with teammates in Portugal.
That was after the controversial decision was taken to postpone a league game away at Lens, initially scheduled for last Saturday, in order to give the PSG squad a break after their Champions League "Final Eight" exertions.
The match at Lens has been rescheduled for next Thursday, September 10, with PSG due to entertain Marseille three days later.
Strict French league rules stipulate that collective team training sessions must be cancelled if a club has at least four positive tests over an eight-day period, with match postponements possible.
The cases raise questions about why the French league decided to postpone PSG's match in Lens, only for so many of their players to travel abroad on holiday during a pandemic.
The postponement was granted in order to give PSG players a rest after their European run, despite France's richest club having only played five competitive games in six months.
The 2019/20 French season was ended early, with 10 rounds of matches unplayed, because of the health crisis, and the start of the new French season has already been impacted.
In recent weeks, several Ligue 1 clubs have reported positive tests, including Strasbourg, Lyon, Marseille, Rennes, Nantes and Montpellier.
Marseille's game against Saint-Etienne on August 21, which was set to be the season opener, was postponed.