Injury-plagued All Blacks centre Richard Kahui's season with Super 15 champions the Waikato Chiefs is in doubt after he hurt his shoulder in training, it was reported Wednesday. Kahui, who missed the Chiefs' win over the Coastal Sharks last Saturday with a hamstring strain, injured his shoulder during tackling practice on Sunday, the Waikato Times said. Chiefs coach Dave Rennie told the newspaper that Kahui would undergo a scan next week, saying signs were "not very good" for the 27-year-old, who has signed to play with Japanese club side Toshiba Brave Lupus next year.

Feb 19 (Reuters) - New Zealand rugby coach Steve Hansen was left frustrated and disappointed at Richard Kahui's decision to switch to the Japanese league, and his mood will not improve amid reports prized asset Dan Carter could join the All Black exodus. Kahui has suffered a series of shoulder problems and the 27-year-old centre and wing said last week's decision to sign a lucrative two-year contract with Toshiba Brave Lupus in the less intense Japanese Top League was made with his injury record in mind.