Day 4 of 15-day Spring Sumo Tournament

Day 4 of 15-day Spring Sumo Tournament

OSAKA, Japan - Yokozuna Harumafuji of Mongolia (R) and No. 2 maegashira Tochinowaka wrestle at the Spring Grand Sumo Tournament at Bodymaker Colosseum in Osaka on March 12, 2014. Harumafuji won, remaining unbeaten during the first four days of the 15-day tournament.

Sumo stablemaster suspected of assaulting wrestlers

Sumo stablemaster suspected of assaulting wrestlers

TOKYO, Japan - Sumo stablemaster Kasugano leaves his stable in Tokyo's Sumida Ward on Oct. 19, 2011, to attend a Japan Sumo Association board meeting. Kasugano, who was known as Tochinowaka during his wrestling days, is being investigated over alleged physical abuse of three of his wrestlers, police sources said the previous day.

Sumo stablemaster suspected of assaulting wrestlers

Sumo stablemaster suspected of assaulting wrestlers

TOKYO, Japan - Undated file photo shows sumo stablemaster Kasugano, who was known as Tochinowaka during his wrestling days. Kasugano is being investigated over alleged physical abuse of three of his wrestlers, police sources said on Oct. 18, 2011. His stable is located in the Ryogoku district in Sumida Ward, Tokyo.

Sumo stablemaster suspected of assaulting wrestlers

Sumo stablemaster suspected of assaulting wrestlers

TOKYO, Japan - Sumo stablemaster Kasugano leaves his stable in Tokyo's Sumida Ward on Oct. 19, 2011, to attend a Japan Sumo Association board meeting. Kasugano, who was known as Tochinowaka during his wrestling days, is being investigated over alleged physical abuse of three of his wrestlers, police sources said the previous day. (Kyodo)

Sumo stablemaster suspected of assaulting wrestlers

Sumo stablemaster suspected of assaulting wrestlers

TOKYO, Japan - Undated file photo shows sumo stablemaster Kasugano, who was known as Tochinowaka during his wrestling days. Kasugano is being investigated over alleged physical abuse of three of his wrestlers, police sources said on Oct. 18, 2011. His stable is located in the Ryogoku district in Sumida Ward, Tokyo. (Kyodo)