James Rodriguez has said that Colombia must improve if they are to stand any chance of winning the Copa America.
Los Cafeteros claimed just one win in the group stages, but they have made it through to the quarter-finals, where they will meet Argentina.
Rodriguez admits that his country have not been at their best, but he expects them to finally show their quality against the pre-tournament favourites.
"Everyone knows that they have good players, but Colombia intends to play," James told reporters.
"I never want to play bad but sometimes it's not how you want. Friday is a great match to try and make things better.
"We always want to win. There are still four more days to talk, but there are always things that can be improved."
Colombia will meet Argentina at the Estadio Sausalito on Friday evening.