But barely a month after signing a deal worth an estimated $3.2 million, it turned out Savea was actually horribly out of condition and in need of remedial fitness work. The All Blacks hid him away for the first weeks of the Rugby Championship, secretly putting him through his own conditioning programme, and gradually returning him to action in time to have a good, if exaggerated, impact at the World Cup.
Savea fell off the fitness wagon again after the World Cup and really, for most of the time since 2015, his story has been one of underperformance, which culminated in him being dropped by both the Hurricanes and All Blacks last year.
A deal that was celebrated has turned into a major headache for NZR. The situation suits neither employee nor employer and the great hope is that everything clicks for Savea in the next few months and he makes a compelling case to earn a test recall.
But if he doesn't, hard decisions loom.
Savea knows his offshore market value will start to drop the longer he remains out the test team. He also knows that if more than 15 months elapse since he started a test, it will become hard to be granted a work visa in Europe.
NZ Rugby don't want such a high earner not performing but if Savea leaves with 18 months left on his contract what sort of message does that send to the international market about the strength of contracts in New Zealand?