Neymar and Kylian Mbappe could cause problems for Paris Saint-Germain's preparation.
Before the crucial Champions League match next week against Liverpool, both players were substituted while representing their national teams in friendly matches.
Neymar suffered an injury early in the game and was replaced in the 8th minute. Brazil was playing against Cameroon when the team leader pulled a muscle.
Meanwhile, K. Mbappe represented France in a match against Uruguay. The forward suffered a shoulder injury.
The doctor of the Brazilian national team revealed that it is too early to determine the seriousness of the injuries.
