The Fighter in the Ring(1956)

Docudrama about Rikidozan. When Rikidozan is accused by a school teacher of selling autographs to children for ¥50 apiece, "Riki" (as he was popularly known) investigates, eventually putting a stop to such unseemliness. Later, as he is about to wrestle an American (modeled after Lou Thesz), a young boy is injured by another youngster who imitated his famous karate chop.