In last years Super 14, George Gregan was suspended for one match following this spear tackle on the Highlanders Richard Kahui.
The veteran Aussie was given a yellow card by referee Jonathan Kaplan but was cited after the match for the dangerous tackle. Gregan was perhaps lucky to get away with only a one week suspension considering how dangerous a tackle like this can be. Quite similar to the Lote Tuqiri tackle on Richie McCaw.
Still, as wrong as it was, it's still fairly impressive to see a scrumhalf mix it up with the bigger boys.