Concussion concerns could change tackling: Cane

Growing concerns about concussions, coupled with the harder line taken by World Rugby on contact with the head, could make players think twice before blasting into tackles to dominate collisions, All Blacks flanker Sam Cane says. Cane was at the centre of a storm last November when he inadvertently made contact with the head of Ireland centre Robbie Henshaw during their bruising test in Dublin.