Argentina and Chile have contested the last two Copa America finals but they meet in the third-place match this time.
Alexis Sanchez is "not at his best level" but Chile are cherishing the Manchester United man's performances at the Copa America in Brazil.
Chile have won the past two Copa America events but face a stern quarter-final challenge in the form of Carlos Queiroz's Colombia.
Chile and Colombia will meet on a level playing field in the Copa America quarter-finals, despite Reinaldo Rueda's nationality.
Chile coach Reinaldo Rueda believes Alexis Sanchez is more loved with the national team than at Manchester United.
Chile coach Reinaldo Rueda confirmed Alexis Sanchez had suffered an ankle injury.
Ecuador were thrashed by Uruguay last time out and must now look to bounce back against two-time defending Copa America champions Chile.
Alexis Sanchez's performance against Japan at the Copa America pleased Chile coach Reinaldo Rueda.
Japan are first up for Chile in Group C, with midfielder Arturo Vidal declaring the holders should be feared at the tournament.
Chile have scored just seven times since Reinaldo Rueda took over in January and he hopes the return of Alexis Sanchez can improve things.