Grab tickets and join the fans at a game at Estadio San Carlos de Apoquindo. If there's nothing on while you're there, you might like to check if they give a tour of the facilities.
You'll want to arrive nice and early to fully explore Estadio San Carlos de Apoquindo. Bring your wallet with you — this sporting facility charges entry. Planning to hang around the suburban area of Apoquindo a while? Pay a visit to Costanera Center, Parque Arauco Mall and Bicentennial Park while you're in the area.