The Koreans had looked in decent shape for their campaign in South Africa after wins over Ecuador and Japan earlier this month. However in Kufstein, Austria, where today's match took place, they were unable to match a side which finished fourth in their European qualifying group, behind England, Ukraine and Croatia.
Midfielder Syarhey Kislyak scored the only goal of the game in the 53rd minute, driving home the ball left-footed into the right corner from 18 yards.
Korea Republic have one warm-up match remaining, against Spain in Innsbruck on Thursday, prior to departing for South Africa. Their World Cup group stage opponents are Argentina, Greece and Nigeria.