[1] Cho was traded to Gyeongnam FC before the 2007 season because Jeju United wanted to bring players whose hometown was located in its region.

However, he helped Jeju maintain its first place in the league until the first half of the next season, and then left a good impression in the 2010 FIFA World Cup.

[5] Some Premier League clubs were interested in Cho in the summer after the World Cup,[6][7] but they did not give specific offers to him.

[10] Cho was named the best defender of the 2010 EAFF Championship,[11] although he had difficulty marking Chinese players in the competition.

[12] Cho was selected for the national team for the 2010 FIFA World Cup,[13] but he was suspected of incompetence by Korean fans.