A Paraparaumu College First XV product, Knewstubb headed to the Kahurangi club in 2014 and has represented Nelson Bays in 15-a-side at both fullback and No 10.
Knewstubb was selected in the All Blacks 7s training squad to prepare for the 2017 Sevens World Series in Wellington.
(LS January 20, 2017)
|New Zealand 7's
|2017 - present|
|2020 - present|