England have never lost a test to the United States, but head coach Eddie Jones said they will not let their guard down against the Americans in their World Cup clash in Kobe on Thursday night.World No. 3 England are the highest-ranked team in Pool C and cannot afford to lose to the 13th-ranked Eagles ahead of pool-stage matches against Tier-1 opponents Argentina and France.England have won all five of their previous encounters, three at the sport's showpiece event. England's most dominant win was a 106-8 rout in August 1999.But Jones said he cannot guess what the U.S. team will bring to th…READ FULL ARTICLE