BANGKOK, May 14 (Xinhua) -- China's dream to defend the Uber Cup was crushed by South Korea on Saturday in a tense 3-2 final that lasted seven hours. After dropping the first set, China's Olympic champion Chen Yufei came back to overcome South Korea's top singles player An Se-young. Chen was trailing in the third set when she called for medical assistance due to an ankle sprain, before An also suffered serious cramp. Chen scored five consecutive points after An took three match points at 20-17 to give China the lead. The following doubles match, between the world's two top-ranked...