Richie Mo'unga has penned a new deal with New Zealand Rugby and the Crusaders, staying put through to 2022.
Mo'unga, 24, made his Super Rugby debut for the Crusaders in 2016, winning back-to-back titles with the Christchurch side in 2017 and 2018.
The first-five has also established himself as back up to Beauden Barrett, playing eight Tests for the All Blacks since making his debut in June last year.
In a statement, Mo'unga spoke of his delight at having committed to New Zealand Rugby for the foreseeable future.
"I'm really fortunate to have had some amazing opportunities with Canterbury, the Crusaders, and the All Blacks, and I feel there is still plenty I want to achieve in New Zealand rugby, which was a huge motivation for me to re-commit," he said.
"I'm really grateful to be part of a club that means a lot to me and that has given me the opportunity to better myself as a rugby player and as a person.
"I want to keep striving to be the best I can be, which ultimately is why I've made the decision to stay in this environment."
All Blacks coach Steve Hansen also heralded Mo'unga's re-signing, saying: "Congratulations to Richie on his re-signing. He is developing into a very good rugby player and it's great that he's staying, as he is only going to get better and better."
"He made a great start last year in his first All Blacks season and we look forward to him going to an even higher level this year. It'll be exciting to watch just how far he can go."