Well, as was reported on Badzine International recently, the head coach of the Korean national team, Kim Joong-soo, intends for Lee and Jung to play together for 6 years. That would take them up to the 2012 Olympics when Lee will be 24 and Jung 30. Thirty years of age is pretty normal for a retiring Korean player. In 2004, the all-Korean men's doubles final featured 29-year-olds Kim and Ha versus 30-year-olds Lee and Yoo. Park Joo-bong came out of retirement to win silver in mixed in 1996 at age 32. He was 28 and Kim Moon-soo was 29 when they won gold in Barcelona. No real news about Jeon and Yoo. They are both 20 this year. The Vietnam Open was only attended by their university(Wonkwang)'s men's team and one professional women's team (KT&G). So these guys don't seem to have got the nod to play at many tournments yet under the auspices of the national team as such, although they are members thereof.
Yonex Sunrise Vietnam Open Results Mixed Doubles YOO YEON SEONG/LEE JUNG MI (Kor) beat KANG MYEONG WON/KANG JOO YOUNG 21-17, 17-21, 21-18 Women's Singles BAE SEUNG HEE (Kor) beat ANITA RAJ KAUR (Mas) 21-8, 21-18 Men's Singles *1 ANDREW SMITH (Eng) beat *3/4 ISMAIL SAMAN (Mas) 21-14, 12-21, 21-19 Women's Doubles KIM JIN OCK/LEE JUNG MI (Kor) beat BAE SEUNG HEE/KANG JOO YOUNG (Kor) 22-20, 21-14 Men's Doubles *3/4 YOO YEON SEONG/JEON JUN BUM (Kor) beat *1 CHEW CHONG ENG/HONG CHIENG HUN (Mas) 21-19, 21-19