He had yet to be officially accessed by Monday afternoon but Jones said Curry was a major doubt for England's second match of the November series.
England have not tasted success over New Zealand since December 2012, but Ashton - who was part of that team - insists Eddie Jones' side must believe they can end that long wait at Twickenham this weekend.
"He's got a tremendous work ethic, Eddie; he does a lot of homework and through that he will have identified some areas he'll want to try to target", Hansen said. "It's always good to have other people who are doing a similar role to yourself to be able to talk to... you've got to have some form of relationship that allows you to get on with each other".
"So it probably indicates I like him and he might like me; I don't know. A lot of those we were in total control of, and some we weren't".
I suppose the proof will be in the way we play on Saturday but I'm definitely feeling good going into it. "And he's just a loosey (loose-forward) who plays for England".
Asked if such moves are generally respected within the sport, Foster said: "I don't know; I think everyone's going to have mixed opinions on that". "From that sense it's great preparation for what's coming one year from now; how you deal with different things that are thrown at you in the moment and how quick can you adjust".
"So it is what it is, in the current laws". That's something they certainly managed at Twickenham in 2012 when they thrashed a clearly exhausted All Blacks team 38-21 (three tries each, as it happens), and for Retallick, who started at lock alongside Sam Whitelock, it's a test he remembers well.
The All Blacks went on a secret scouting mission at Twickenham last weekend, a chance to soak up the atmosphere that 80,000 rugby supporters can create at the famous old ground and, more importantly, get some intelligence on the enemy they will face on Sunday. And the goal-kicking is a part of that.