Oh sang eun with son Sina sports - four South Korea for the Olympics table tennis legend oh sang eun because right shoulder pain, already have three months can't take ping-pong racket. Before the 2008 Olympic Games in Beijing, he had surgery on his right arm, but now the pain has not allowed him to continue the fight. As South Korea's largest active grade player and started to play table tennis at the age of 9 oh sang eun has been running for 30 years at the edge of the table. Last month, wu...