SUMO/ Hakuho in tussle again with JSA for hand-clapping rite after big win?The Asahi Shimbun

Mostly unrelated, but ... "Hakuho told the directors that he wanted to boost enthusiasm among the crowd because the tournament was the last of the Heisei Era, which began in 1989 and will end with the abdication of Emperor Akihito on April 30."