Colombia midfielder James Rodriguez described his opening strike of the 2014 World Cup finals as "a dream come true" as his side eased to a 3-0 Group C win over Greece.
The highly-rated Monaco star rounded off a strong performance from the South Americans by sliding home their third and final goal in injury time.
Pablo Armero had given the Colombians a fine start with a deflected fifth-minute opener and Teofilo Gutierrez struck a close-range second on 58 minutes.
Rodriguez said: "I'm happy because we've won the game and because I scored, that was a dream come true for me.
"Greece are a strong team defensively, but we stayed solid and patient enough to wait for spaces to open up going forward.
"We scored an early goal and that helped us as well. Now we have two more games and we have to show the same responsibility and will to win as we did here."
Colombia's emphatic opening win makes them big favourites to progress from a group which also includes Ivory Coast and Japan.
Coach Jose Pekerman said: "This is a fantastic result for the whole of Colombia because there was a lot of emotion among the fans today. Nothing is decided yet, but we went about our task in the right way."
Meanwhile, Greece's hopes of advancing from the group stages of a World Cup finals for the first time in their history are hanging by a thread.
The manner of their defeat drew few complaints from Portuguese coach Fernando Santos, who admitted: "Colombia were the better team.
"They caused us problems right from the start and we weren't focused enough and didn't react. At the end of the day, the margin of defeat is still too high though."