Martin Clark (born 13 October 1968 in Motherwell) is a former Scottish football player who last worked as assistant manager at Scottish Football League Third Division side East Stirlingshire working under his long term boss Jim McInally with whom he also worked at Greenock Morton and for the youth teams at Celtic.Clark began his career with Hamilton Academical but did not make a senior appearance for them. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Athlete