South Korea got their World Cup campaign off to a winning start by beating the Czech Republic 2-1 Thursday after finally converting some of the many chances they created. Until the 80th-minute mark it seemed that the Czechs would punish the Koreans' wastefulness, but substitute Oh Hyeon-gyu scored the decisive goal in a Guadalajara stadium that was far from full. Son Heung-min's Koreans had dominated the first half but were unable to find the net. The Czechs had a goal disallowed before Hwang added to his goal with an assist, crossing from the right for Oh to slot home. When the final whistle sounded after a frantic end to the game, Son sank to the turf in joy. South Korea face co-hosts Mexico, who beat South Africa 2-0 in the tournament's opening Group A game earlier Thursday, on June 18. The Czechs play the South Africans in Atlanta on the same day