What makes their likely response so mouth-watering is that Samoa rather enjoy the physical stuff themselves. They are the proverbial brick wall and as they ably demonstrated when the All Blacks played in Apia this year, Samoa rugby do a particularly special line in aggressive defence.
They remain the masters of warrior rugby - absolutely lethal when it comes to high impact tackling. Even the All Blacks were a little rattled by the ferocity of Samoa's defence - ball carriers who were hit early becoming noticeably wary the next time they were in possession.
It's a quality skill that Samoa have - it creates hesitancy and wariness in their opponents and everyone knows the fear of what could be coming in often is the more powerful tool than what actually comes.
What all this means is that the game of the weekend is likely to be in Birmingham rather than at Twickenham where England will be playing Wales. The Pool of Death hasn't lost its special status as such, it is just that Pool B has suddenly become equally if not more fascinating because of the sheer unexpectedness of what happened in Brighton.
There is now no one with a good feel of what will transpire: South Africa could romp home, or maybe they will be tackled into another panicky mess by the Samoans.
Whatever, the chances of this game being dull are zero. When they met in 2011 at North Harbour Stadium, it was one of the best games of the pool round. There was venom and nastiness in many of the exchanges and the battering both took was huge.
The only guaranteed aspect to be replicated from 2011 is the ferocity of the battle.