Ilkay Gundogan is the first injury casualty for Barcelona in September's international break.
The midfielder seemed to tear his hamstring during Germany's 2-1 win against France in a friendly match
Gundo was substituted after just 25 minutes into the game. The player was spotted in tears as he left the pitch.
According to Sport, Barcelona worry that Gundogan's injury may take some time to heal and the player may miss crucial Champions League games coming up in September and October.