Lionel Messi is one of four Paris St-Germain players to test positive for Covid-19.
The Argentine forward and team-mates Juan Bernat, Nathan Bitumazala and Sergio Rico were confirmed to have Covid a day before PSG’s French Cup tie against fourth-tier side Vannes.
PSG boss Mauricio Pochettino added that Messi remained in Argentina where he spent the winter break and would not travel until testing negative.
During a pre-match news conference on Sunday, Pochettino said he could not put a date on Messi’s return.
PSG’s first league game of 2022 after their winter break is against Lyon on Sunday, 9 January.
Forward Neymar will miss that match as he continues his recovery from an ankle injury in Brazil.
PSG say the 29-year-old is expected to return to training in three weeks.