More than 15,000 trans-Andean fans are expected this Thursday for the Phase 2 qualifying match. In the search of the first 10 buses with Cacique fans, led by Jorge Almirón, drugs and weapons were found.

The Ministry of Security of Mendoza has mounted an operation to encapsulate the buses with Colo Colo fans and will double security around the stadium, with around 950 police officers. La Garra Blanca, the most violent faction of the Colo Colo bar, caused damage to a memorial that honors those who disappeared from the Pinochet dictatorship.