Click here for the latest interchange podcast:
He elected to sign for the Roosters, and had made his first grade debut by the end of 2012.
The rest is well documented history, with a premiership title, tests for his country and two Dally M player of the year awards.
But it all began on fields out in South Auckland with his school mates, and Tuivasa-Sheck hopes to inspire the next generation.
"I know what that tournament did for me," said Tuivasa-Sheck. "I was pretty young and just wanted to play with my mates and do my best for my school. But we did well and it led to big things for me."
This week Tuivasa-Sheck is launching his `RTS Legacy project', in association with Canterbury, which gives one of the 24 schools competing at this year's national tournament the chance to win a full set of Canterbury branded custom designed jerseys.
The competition is open to students at the relevant schools, who will submit their jersey designs based around Tuivasa-Sheck's "four pillars" of honesty, commitment, respect and faith.
"These pillars are what I base my life around [and] what drives me to succeed," said Tuivasa-Sheck. They have been important in getting me where I want to go. Leaving a legacy is important to me and I hope things like this can inspire others."