Barcelona forward Raphinha Diaz left the pitch at halftime during the friendly match between his national team, Brazil, and Australia.
Raphinha was substituted at halftime after feeling thigh pain, according to Mundo Deportivo newspaper.
The Barcelona forward wore the Brazilian national team captain's armband, as Marquinhos started the match on the bench.
Before being substituted, Raphinha was Brazil's standout player in the first half, managing to score the equalizing goal for Brazil from a penalty kick in the 45th minute.
His substitution due to injury raises concern within Barcelona, given his clear brilliance since the start of the season and his role as team captain.
What increases Barcelona's worry is that the player suffered an injury to his right thigh, which had previously been injured twice in recent months.
Tuesday's match is the second friendly between the two teams during the current international break, following their 1-1 draw in the first match held last week.
Raphinha had played all minutes of the first match.
The 29-year-old player has featured in 8 matches for Barcelona this season, scoring 14 goals and providing 3 assists.
