Daejeon | Tue 18 June | 1230 BST
BBC One/Radio Five Live
South Korea coach Guus Hiddink insists his side will continue to play attacking football in their second round game against Italy on Monday.
The World Cup co-hosts won Group D and were widely praised for their attractive passing style.
Hiddink said his tactics would not change against Italy.
"I would not start changing the tactics now even if I could," the Dutchman said.
"The players would not be able to change their style of play
and I would not ask them to.
"It is going to be a curious game against Italy. We will have
one of the smaller footballing nations attacking one of the
"Italy are a very smart team. They choose their own style of
play - they want to get a result even if the game is not pretty.
"Italy are a good team and a resolute team. It will be tough, tough,
Hiddink said the main strength of the Korean team was their
willingness to play for each other.
"It has been a huge team effort to reach the second round," he
"They are very close and they have grown as players, and in
confidence, so much over the past few months.
"They have coped with such high expectations within the country
and they are becoming better by the game.
"The players have an ability to learn very fast - most of them
have not experienced this kind of pressure situation before.
"Sometimes in the past few months I have been tough on my team - now I am very proud of them."
In contrast to South Korea, Italy scraped through their group, taking only four points from their three games.