Analysis of information sources in references of the Wikipedia article "Sean Wainui" in English language version.
Wainui was born in the small settlement of Whatatutu near Gisborne and raised in Auckland before attending Takapuna Grammar School where he was a stand-out as captain of the first XV before making his debut for Taranaki in 2014, while still a teenager. A year later he won the Junior World Championship with the New Zealand Under 20 team, earned his first Super Rugby contract with the Crusaders, and represented the Māori All Blacks for the first time.