The Manchester United midfielder, 29, did not play as his
country beat Uzbekistan 3-2 in the third-place play-off
yesterday.
That means he ended his career as captain of South Korea with
exactly 100 caps.
Former Tottenham full-back Young-Pyo Lee, who won his 127th cap
against Uzbekistan, has also retired.
South Korea coach Cho Kwang-rae said: "The two players have done
a remarkable job for the prosperity of Korean football.
"It would be better if I could retain both of them in the
national team but other players have done an excellent job."