All Blacks halfback Aaron Smith has committed to four more years with New Zealand rugby.

The world-class 26-year-old, who has played 41 Tests, will also maintain his ties with the Highlanders at Super Rugby level and with Manawatu at provincial level until 2019.

“Knowing I’m contracted for the next four years allows me to focus on my rugby and there are some exciting challenges ahead for the All Blacks which I hope to be part of,” he said.