Jung Jae-sung

Jung Jae-sung (also spelled Chung Jae-sung; Hangul: 정재성; Hanja: 鄭在成; ; 25 August 1982 – 9 March 2018) was a South Korean professional badminton player. Jung was born on 25 August 1982 in Jeonju, Jeollabuk-do. He started playing badminton at 7, at his local elementary school. He entered the South Korea national badminton team in 2001. Career In 2000, Jung was part of the Korean national junior team competed at the World Junior Championships in Guangzhou, China, and Asian Junior Championships in Kyoto, Japan. In Guangzhou, he won the mixed team bronze after his team lost 2–3 to China, and in Kyoto, he won the boys' doubles silver and boys' team bronze. In 2003, Jung, who represented Wonkwang University, won the men's doubles title at the National Championships in Gyeonggi partnered with Lee Jae-jin. In 2004, he and Lee Jae-jin retained their title, and in 2006, Jung repeated his success partnered with Lee Yong-dae.