SA excuses? Not sure they'll need them; the physical challenge they offer could bring them home the prize.
Highlights are on youtube; take a look, well worth it.
Remember just 2 years ago SA lost to Italy and lost by a record margin to Ireland. South Africa nearly broke! If they do lose on Saturday, I highly doubt there will be excuses. Unless of course there is some spectacular refereeing implosion (ask the Kiwis about that). I get the sense most South Africans are just thrilled to be in a final again with a team they can be proud of!