Sonny Bill Williams' next boxing bout could be cancelled.
The former All Blacks midfielder has arrived in Sydney to prepare for next month's fight.
But he's carrying a pectoral muscle problem picked up in Japanese rugby and will now see a specialist in Australia to determine his immediate future.
Williams says his boxing return is questionable.
"At the moment it's a little bit in doubt, just come back here to straight away get some scans and see how the pec is, see the extent of the injury.''
