Yokozuna Hakuho said Monday he felt an "invisible weight" after suffering an arm injury in the final bout of the Spring Grand Sumo Tournament, where he racked up a record-extending 42nd top division title.
Hakuho pulled out another close victory in Sunday's bout against fellow yokozuna Kakuryu, but was seen holding his upper right arm and grimacing in pain after securing the Emperor's Cup.
At a news conference in Osaka, Hakuho said the injury was treated later on the night of his win and demonstrated his arm's limited range of movement by raising and lowering it in front of reporters, indicating a possible muscle tear.