Career
Jung started playing badminton at 7, at his local elementary school. He entered the South of Korea national badminton team in 2001. At the Asian Games, Jung and Lee became bronze medalists after losing the semi-finals to Luluk Hadiyanto and Alvent Yulianto of Indonesia in the individual men"s doubles event.
In the team event, South of Korea lost to China in the final 2-3, thus gaining Jung a silver medal.
2007
In January, Jung and Lee participated in the Malaysia Open, the first ever BWF Super Series event. There they got through the first round but had to resign due to injury.
However a week later they blew away competition to take the first prize at the of Korea Open. Jung and Lee lost to Lee Jae-jin and Hwang Ji-man in the final of the German Open.
Jung participated to the 2007 Sudirman Cup with the South of Korea team
The team lost to China in the semi-finals with a score of 0-3. In July, after a period of disappointing results in men"s doubles, Lee became runner-up with Jung at the Thailand Open, losing to Lee Jae-jin and Hwang Ji-manitoba Not much later, the pair went on to take the silver medal in the 2007 BWF World Championships.
They were defeated in the final by Markis Kido and Hendra Setiawan of Indonesia, 19-21, 19-21.
Jung and Lee there lost to the eventual winners, Cai Yun and Fu Haifeng of China. 2008
To start 2008, Jung, together with Lee, disappointingly lost to an unseeded pair in the second round of the Malaysia Open.
There they lost to runners-up Luluk Hadiyanto and Alvent Yulianto of Indonesia. A week later, the pair were victorious in the Swiss Open of 2008 too.
At the Badminton Asia Championships Jung and Lee became winners, beating Candra Wijaya and Nova Widianto of Indonesia in the final.
= Olympics Not having participated in the two following Super Series events, supposedly because of their preparations for the Summer Olympics, Jung and Lee were disappointingly knocked out in the first round in Beijing. His partner went on to get the gold medal in mixed doubles. That was Jung"s final tournament.
