The goalkeeper was injured during the warm-up prior to Saturday's game between PSG and Brest of the French League, in which he was going to start as a starter. His place in that game was taken by the Spanish Sergio Rico.
According to the medical part sent by the PSG to the Federation of Costa Rica, Navas suffered "an intrinsic trauma that causes pain in the inner thigh."
This Sunday in France they performed an MRI scan that "showed a type 3A lesion according to the Munich classification, which is a minor structural lesion of the short adductor, which will require at least 10 days of treatment," the Federation said in a statement.
The medical team of the Costa Rican team analyzed the medical part and the images sent by the club, and coincided with the diagnosis of PSG.
Before the loss of Navas, the Costa Rican coach, Ronald Gonzalez, summoned the Bolivian Bolivar goalkeeper, Leonel Moreira. The other two goalkeepers on the summoned list are Esteban Alvarado (Herediano) and Adonis Pineda (Alajuelense).
The Costa Rican national team will begin training on Monday with a view to Thursday's away game against Curacao and Sunday at home against Haiti.
After two games played Costa Rica has two points in Group D of the League of Nations, behind Curacao (5 points in three games) and above Haiti (2 points in three games).
To get the group's only ticket to the next phase Costa Rica needs to win both games against Curacao and Haiti, or win one and tie another. EFE