Greece striker Georgios Samaras' FIFA World Cup has been "an unbelievable dream" despite the team's early exit in the group stage.
Argentina eased through to the Round of 16 on maximum points, while Korea Republic pipped Greece to join them. Nigeria, meanwhile, also came up short.
Some 500,000 fans gathered in public spaces throughout Korea Republic during the early morning to watch their team advance to the last 16.
Coach Lars Lagerback was disappointed that his Super Eagles failed to advance to the last 16 but called his time with the team "a fantastic journey".
Korea Republic coach Huh Jung-Moo is pleased to have advanced out of the group stage but said his team now wants even more.
Argentina's Lionel Messi described the opportunity to take on the captain's duties against Greece as "something very special".