Ivory Coast coach Sabri Lamouchi maintains he is not "obsessed" about Didier Drogba after again starting with the striker on the bench in the 2-1 defeat to Colombia.
Los Cafeteros closed in on the knockout stages after edging a fiercely contested Group C clash in Brasilia.
Monaco midfielder James Rodriguez fired Colombia ahead just after the hour mark with a powerful header from a corner, with substitute Juan Quintero adding a second on the break following a mistake by Ivory Coast midfielder Serey Die.
Drogba, the former Chelsea player continuing to be troubled by a thigh problem, did not come on until shortly before Colombia's opening goal, replacing Swansea forward Wilfried Bony, with Salomon Kalou also having come on for the closing stages.
A fine individual goal from former Arsenal forward Gervinho set up a tense finale, but the Elephants could not find an equaliser.
Ivory Coast had beaten Japan in their opening match, but may now well need victory over Greece to maintain hopes of making the second round.
Lamouchi, though, insisted he always picked the side he felt best equipped to get a result rather than worrying about individuals.
"I am not obsessed with Didier Drogba,'' the Frenchman said at a news conference.
"If you look at the team, I have seen very interesting things from my players. It is just a few details that we missed, and that meant we lost the game.''
Lamouchi added: "My players did not deserve to lose, a draw would have been more deserved.
"It was a very experienced Colombian team who waited for us to make mistakes, unfortunately we made some and were hit in a hard way.
"We created some chances and came back to score, so I feel we lost unfairly.''
Lamouchi accepts the requirements for his side are clear heading into the showdown with Greece at Fortaleza on June 24.
"We will need to go and fight to get a victory against Greece, it is very simple. I do not see any other way to qualify," he said.