Please answer the following question: Michael Niedrig -  Michael Niedrig (born 12 January 1980 in Cologne) is a German former footballer. He made his professional debut for 1. FC Köln in the 2003–04 season. 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