Dan Carter says it was the right decision to retire from New Zealand duty after winning a second World Cup in October but is braced for a tough experience watching the All Blacks from afar this year.
Carter's final act for New Zealand was lifting the Webb Ellis Cup at Twickenham following a 34-17 win over Australia.
The 33-year-old, who missed the final through injury when the All Blacks won the World Cup on home soil in 2011, is now playing club rugby with Racing 92 in France.
And while the fly-half has no regrets about walking away from the national team after 112 appearances, he is expecting a few conflicting emotions when New Zealand's 2016 season begins with a Test match against Wales in Auckland on June 11.
"It still feels like it was the right decision to retire from international rugby but once the All Blacks Test matches start up again in June it's going to be pretty difficult to sit back and watch, knowing that I'm unable to play for them anymore," he said.
"But you know I'm going to be their number one supporter moving forward so I'm excited for the international season."
After three Tests against Wales, New Zealand's 2016 Rugby Championship campaign begins against Australia in Sydney on August 20.