The refs in the Copa have been pretty poor. In the earlier match, Bolivia was burned by a skeptical handball in the 8th minute of stoppage time. Granted, Chile should have had a penalty for a handball in the first half. But it shouldn't have mattered that late in the game.
There have been several goals that should have been that were not allowed and incredibly poor offsides calls. Best refs in the world are in Europe, by a mile.....