It appears the Blues' Rene Ranger does not have a monopoly on bone-crunching tackles in New Zealand - step forward Wanganui Collegiate School's Ruslan Casey.

News of his exploits reached ESPN towers via New Zealand TV's excellent Crowd Goes Wild and you can re-live his epic - and a little late - hit on St. Pauls Collegiate's Kip Fawcett below.

The sound of Fawcett's body crumpling is arguably more alarming than the tackle itself. Brace yourself.