Wallabies coach Ewen McKenzie wants the element of surprise to be on his side when Australia attempts to bring the Bledisloe Cup home for the first time since 2002.
The identity of Australia's five-eighth and place kicker for the opening Bledisloe Cup test remains a mystery, and McKenzie is desperate to keep it that way.
When McKenzie named his 30-squad on Friday, New Zealand officials had a platform to start piecing together a likely team for the opening transtasman clash on Saturday in Sydney.
But the one unknown is at No10, with McKenzie retaining Quade Cooper and uncapped duo Matt Toomua and Bernard Foley in his trimmed-down squad for the ANZ Stadium match.
"All three are there so you're going to have to keep speculating about it," McKenzie said, before cheekily adding that he'd already decided who will replace incumbent five-eighth James O'Connor in the starting side.
McKenzie was similarly guarded when it came to who would handle the Wallabies' kicking duties.
"They [the All Blacks] will look at the list and start trying to work it out, I guess, but my job's not to make their life easy," he said.
"We'll hopefully have a few surprises on the night. Hopefully we can keep our powder dry and turn up with a few tricks up our sleeves."
Aussie options at 10
Quade Cooper (Reds) - 38 tests
Matt Toomua (Brumbies) - Uncapped
Bernard Foley (Waratahs) - Uncapped