Answer the following question: 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. John Riley (Australian footballer) -  John Riley (born 23 April 1958) is a former Australian rules footballer who played with Footscray in the Victorian Football League (VFL) and North Adelaide in the South Australian National Football League (SANFL).Originally from Broadview Riley made his SANFL debut in 1977 and by 1982 was North Adelaide captain.
Answer:
Athlete