It's Barrett vs Mo'unga as fans are poised for mouth watering battle of the 10s in Super Rugby knock out

This weekend, two of New Zealand's form out-halves will face up against each other as the Crusaders and the Hurricanes duke it out for a place in the Super Rugby final. And with the world cup in Japan just months away, this encounter is the first litmus test of form for All Blacks head coach Steve Hansen.