Joe Cokanasiga scores twice as England turn on power to crush Ireland

• World Cup warm-up: England 57-15 Ireland• Worrying Mako Vunipola injury mars victoryIreland suffered burn-out in the warm-up. They faded in the heat as England scored a record number of points in the fixture and exceeded by two their previous highest winning margin. It was only 10 months ago that the Irish, having beaten New Zealand for the second time in two years, were being heralded as Europe’s leading contenders in the World Cup, but now they cannot assume topping a group that includes the hosts and Scotland.England were close to full strength for the first time this month and their form…