Watch: Heavyweight Joe Parker demonstrates new liver punch

Duco 21/01/2016

Joseph Parker showcases his new liver punch at training in Apia, Samoa. Parker also explains how he intends to use it in the bout with southpaw Jason Bergman on Saturday night.

This video also contains comments from Jason Bergman; former All Blacks star Inga Tuigamala; plus images of Kevin Barry teaching primary school Samoan kids how to box.

The official weigh-in for the bout will be 9.15am tomorrow morning (local time) outside the government buildings in Apia.