Please answer the following question: Kris Dielman -  Kristopher M. Dielman (born February 3 1981) is a former American football guard who played for the San Diego Chargers of the National Football League (NFL) for nine seasons. He played college football for Indiana University. The San Diego Chargers signed him as an undrafted free agent in 2003 and he played his entire professional career for the Chargers. He was selected to the Pro Bowl four times and was a member of the Chargers 50th Anniversary Team. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Athlete