Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Hiroki Shishido - Hiroki Shishido (Japanese: ; born March 16 1977) is a Japanese welterweight shoot boxer fighting out of Cesar Gym Asakusa. He is a former 2004 S-cup world tournament finalist and WMC Intercontinental Super Welterweight champion.
A:
Athlete