Amarilla was like always, he is a good referee but exaggerated with his calls, some yellows could have been avoided.
Amarilla is one of the best referees of South America, but he has only one thing to get better, when to use his card. There are some matches in which you can talk without giving the players a yellow card, also that´s for him easier because only his name makes some players to calm down.
As I said it was ok under his criterion, but it could also been avoided.
The match was not bad, but these teams need some player who can score, they had many chances but all of them were wasted.