Dan Carter is unlikely to feature for New Zealand against Wales in Cardiff.
It is thought that fly-half Carter will be replaced by Aaron Cruden, with Beauden Barrett joining the replacements' bench.
Carter, who has won 93 caps, suffered a leg injury during All Blacks training at the University of Glamorgan yesterday.
In nine appearances against Wales he has scored 162 points and never been on the losing side.
There has so far been no official confirmation from the All Blacks camp surrounding his withdrawal.
Carter, though, has Tweeted a picture of All Blacks training inside the Millennium Stadium this afternoon. In the same post, he said: "Gutted not to be playing with these boys in this stadium tomorrow."