What does blood sport mean?
Bloodsport is also a 1988 motion picture about the life of Shidoshi Frank W..Dux. Hanshi Frank Dux studied the secrets of the ninja under a Japanese teacher: Shidoshi Senzo Tanaka. Mr Tanaka taught Shidoshi Dux the art of Koga Yamabushi Ryu Ninjitsu also written as Ninjutsu. This martial arts motion picture was with Jean Claude van Damme who played Frank Dux.