Ronan O'Gara's Canterbury Crusaders stayed on track to defend their Super Rugby title with a ruthless 30-12 semi-final destruction of Hurricanes in Christchurch.

The former Munster and Ireland outhalf joined the coaching ticket back in January as assistant coach to Scott Robertson and has earned high praise in New Zealand for the positive impact he's had on the side.

O'Gara, who left Racing 92 for the Crusaders, penned a contract extension in June that ties him to the club until the end of the 2019 Super Rugby campaign.

Richie Mo’unga, George Bridge, David Havili and Braydon Ennor all ran in tries to give the Crusaders a 14th win on the bounce. 

They are chasing their ninth Super League crown, and will enjoy home advantage in next week's final.  

Crusaders will play the Lions in the decider after the South Africas fought back from 14 points down to beat the New South Wales Waratahs 44-26.

Malcolm Marx and Kwagga Smith grabbed two tries each and winger Aphiwe Dyantyi scored a superb solo effort.

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