Striker Neymar has been substituted with an apparent groin injury during the first half of Brazil's friendly against Cameroon.

The Brazilian star was taken off after just eight minutes and was replaced by Everton's Richarlison, who gave his team a 1-0 lead with a header just before the halftime break.

Neymar's injury will be a concern for his club Paris Saint-Germain, which faces a key Champions League match against Liverpool next week.

In a quick interview with TV Globo, Brazil's team doctor Rodrigo Lasmar said it was too early to determine the extent of the injury.