Daniel Carter is in doubt for Sunday morning's test against Wales.
In the final hit out for the test in heavy conditions at the University of Glamorgan, Carter ran for 20 minutes before he grimaced after a crosskick when he felt some pain in his right leg.
His discomfort was apparent and he immediately swapped training bibs with Aaron Cruden and shuffled out of the practice.
The five eighths appeared to hurt his leg training at the same venue earlier in the week but there were denials about any problems.
When questioned at the team announcement today, coach Steve Hansen was emphatic there was no issue with the champion five eighths.