Japan face test of mind and muscle against South Africa in quarter-final

World Cup has elevated the hosts but they are highly programmed and have struggled when tactics changeJapan have made this World Cup with their effervescence, verve and slickness, but to beat South Africa for the second successive tournament they will need to show a capacity to react to something they have not planned for.The Springboks feel like a customer at a bar who cannot get served. The focus has been on the hosts since their stunning victory over Scotland, a match that went ahead only after volunteers, some of whom had lost their houses when Typhoon Hagibis hit Japan’s capital last Satu…