And late on United might have concede a penalty when Dong-Gook Lee went down following a John O'Shea tackle.

BBC: SPORT | Football | Premiership | Man Utd 1-1 Middlesbrough

But after the break it was the Koreans who dominated as Lee Dong-Gook broke the deadlock in the 65th minute.

CNN: South Korea beat Kuwait to advance with underdogs Lebanon

After the Scotland win, Prime Minister Lee Han-Dong urged the country's largest union not to stage any strike action during the finals.

BBC: South Korea cause stir

The Koreans led 2-0 inside the first 10 minutes in the sodden conditions at Al-Gharafa Stadium as Ji Dong-won scored the first of his two goals with a header after keeper Paul Subrata failed to deal with Lee Chung-yong's cross.

CNN: STORY HIGHLIGHTS