Ian Foster: All Blacks coach talks World Cup build-up, selections and play style for Rugby Championship, and more

In a very special interview, All Blacks coach Ian Foster joins Martin Devlin on It's Only Sport, ahead of the Rugby Championship kicking off. Foster and his team jet off to Mendoza this weekend before playing Argentina a week later. He talks to Martin about their preparation, how he and his fellow coaches balance trying to win every test match while also preparing appropriately for the Rugby World Cup, how he wants his team to play, what matchday side he has in mind to face Argentina, and much more.