PSG goalkeeper Keylor Navas set to miss Champions League semi-final because of this.
Navas missed training due to a hamstring injury after he had to be substituted in the 79th minute of the quarter-final victory against Atalanta.
As reported by goal, Navas has suffered a torn hamstring and is unlikely to be in action against Leipzig.
Navas has featured prominently for PSG this season, making 34 appearances, eight of which came in Europe.
Former Fulham goalkeeper Sergio Rico is set to start in place of Navas.
Meanwhile, Marcin Bulka, who was previously at Chelsea, will provide backup on the bench.
It is unclear where Rico, who is on loan at PSG from Sevilla, will be playing next season.
Rico signed a short-term extension to remain with PSG until the end of the campaign after the season was halted.