Bronislau Bronko Nagurski (November 3 1908 January 7 1990) was a Canadian-born American football player. He was also a successful professional wrestler recognized as a multiple-time world heavyweight champion. 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?
Athlete