Passage: Lee was born in Heukseok-dong, Dongjak-gu, Seoul. As a child, Lee had hoped to become a professional football player. He was selected for the youth football class of South Korean manager and former professional player Cha Bum-Kun, but an injury in the 5th grade of elementary school put an end to this aspiration. In his second year of high school, Lee turned to acting.

Question: After being injured during the 5th grade and squashing his desire to become a football player, what occupation did Lee begin pursuing?
acting