All Blacks good but still working to get better - Hansen

Rugby Union - Championship - New Zealand All Blacks vs South Africa Springboks - Auckland, New Zealand - September 16, 2017 New Zealand team pose after defeating South Africa. REUTERS/Nigel Marple

AUCKLAND (Reuters) - New Zealand produced their best performance for some time in their record 57-0 rout of South Africa, according to coach Steve Hansen, but he felt they still had plenty to work on as the All Blacks progress towards the 2019 World Cup.

Hansen's side ran in eight tries and produced a physical defensive effort to win the collisions and slow down the Springboks' ball at North Harbour Stadium to hand the visitors their worst test defeat.