Jane was forced from the field in the 52nd minute of the Wallabies last-gasp 26-24 victory at Hong Kong Stadium and was undergoing scans while teammates were coming to terms with the end of their 15-test winning sequence.
An automatic choice in the All Blacks line-up, team management will be hoping Jane's medical assessment does not detect serious damage.
The All Blacks already have to contend with the unavailability of Sitiveni Sivivatu - the 43-cap veteran was ruled out of the tour with a knee injury hours before he was due to join the squad.
When Sivivatu's withdrawal was confirmed All Blacks head coach Graham Henry said a replacement would not initially be necessary because Jane, Joe Rokocoko, Hosea Gear and Isaia Toeava covered that position.
However, if Jane's injury is significant Rene Ranger, a new All Black in 2010, may be summoned.
New Zealand were to fly out for London at 1.35pm (NZT) where they open their four-test schedule against England, Scotland, Ireland and Wales at Twickenham on Sunday (NZT).
