Dean Mountain is police officer and a professional rugby league footballer of the 1980s and '90s playing at club level for Stanley Rangers ARLFC Castleford Ryedale York and Huddersfield as a Prop or Second-row his rugby league career was ended by damage to his cruciate ligaments sustained during a tackle in an 'A' team evening game in January 1991 following a recovery from a broken bone thumb. 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?
A:
Athlete