Konstantin Sakaev (Russian: ; born in a Tatar family 13 April 1974) is a Russian chess Grandmaster (1992) from St Petersburg and Russian Champion in 1999. He is also a chess writer. Sakaev is on the staff of the Grandmaster Chess School in St. Petersburg and has assisted Vladimir Kramnik and Nana Ioseliani while preparing for World Championship Candidates' Matches. 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