Johnny Sexton insists Ireland's number one ranking means nothing compared to Saturday's opponents' status as world champions.
Ireland head coach Andy Farrell last week told his players to embrace their position at the top of world rugby's pile and to go on the attack to preserve it.
But his skipper Sexton is taking a different tack heading into the Aviva Stadium clash with reigning World Cup winners South Africa, the weekend's most eagerly-anticipated Autumn series clash.
