Watch: Hurricanes cause headache for Crusaders

New Zealand continues to lead the rugby world, not just in the rankings, but in the implementation of HIAs, assessments that are vital for player safety. This year's Six Nations has only served to prove that the Northern Hemisphere continues to lag behind, in more ways than one.

It is likely that Ryan Crotty and Sam Whitelock will both be stood down for the Crusaders match with the Highlanders this weekend.