Koo Dae-Sung

Koo Dae-sung (Korean: 구대성; Hanja: 具臺晟; born August 2, 1969 in Daejeon, South Korea) is a Korean professional left-handed pitcher. He formerly played for the Hanwha Eagles in the KBO League. He was also formerly with the New York Mets of Major League Baseball and the Orix BlueWave of Nippon Professional Baseball. He announced his retirement from Korean baseball on August 15, 2010. He last played for the Sydney Blue Sox in the Australian Baseball League.