Choi became the youngest ever player to be the top scorer in the AFC Asian Cup at age 18.

In 1981, he led South Korean under-20 team to the 1980 AFC Youth Championship title by scoring four goals.

[4] He finally provided two assists as well as scoring a goal in the World Cup, proving his abilities outside Asia.

Its interest lasted until the end of the 1986 World Cup, but his team POSCO consistently rejected its offer.

[5][6] Regarded as one of the most technically gifted forwards in South Korea, Choi was proficient at controlling the ball with various skills including shot, dribble, touch, and pass.