The penalty for Libertad was difficult to see but Lpoes saw it, a + for him. He was also right when he showed the red card to the defender, It was a clear chance to score.
The penalty for San Martin in my opinion wasn´t. I think Lopes was wrong with his interpretation. The yellow card was ok under his criterion, but the goalkeeper was too much outside his area, the penalty should have been retaken.
In the match was one part in which Lopes lost control. He should have used his card at least to times to calm the players down. He had luck, nothing else happened in this 10 minutes.
Libertad is now the first team in the next stage of the Libertadores and give some hope to Once Caldas and San Luis who played later today