All Japan Judo Open Weight 1974 @Budokan

Nobuyuki Sato vs. Sumio Endo in the semifinal.

Nobuyuki Sato, a two-time gold medalist at the Worlds, recruited Yasuhiro Yamashita, and trained him after Yamashita transferred schools.

Endo made himself well-known after he broke Yamashita’s leg via kani basami.

Sumio Endo wins the 1976 All Japan.

Endo breaks Yamashita’s leg via kani basami.
This was a weight-class tournament(1980). Both guys competed in the heavyweight of course.

The match was ruled no contest, but there was some debate about that because kani was legal. It was supposedly a throw.