Career
He previously played for K-League club Busan IPark. Choo joined Busan I"Park as a draft pick from Sungkyunkwan University for the 2011 K-League season. Lee made his first start for Busan against Gangwon Football Club in the fourth round of the 2011 K-League Cup, playing the full 90 minutes.
His K-League debut was on 15 May 2011, as a late substitute in a match against Incheon United.