"MY MUSCLES CAN'T HOLD UP." "FULL OF LAUGHTER." WHY KOO JA-CHEOL DECIDED TO RETIRE

"I thought I couldn't do it." Jeju SK held a press conference for Koo Ja-cheol (36)'s retirement and an appointment ceremony for Jeju SK FC Youth Advisor at 10:30 a.m. on the 14th at the soccer center in Jongno-gu, Seoul. Koo Ja-cheol wore the Jeju uniform as the third pick in the 2007 K-League Rookie Draft. Since then, Koo has established hi