Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Lee Jae-seong -  Lee Jae-seong (Korean: 이재성; born 5 July 1988) is a South Korean football defender who currently plays for Sangju Sangmu Phoenix.
Athlete