Japan’s first female prime minister, Sanae Takaichi, is confronting an unexpected dilemma: whether she will be allowed to enter the country’s most sacred sporting arena – the sumo ring – to present the winner’s trophy that bears her office’s name. Just days before the Kyushu Grand Sumo Tournament opens on Sunday in Fukuoka, the all-male Japan Sumo Association (JSA) is reportedly weighing what to do if Takaichi wishes to perform the long-standing prime ministerial duty of handing over the Prime...