Iain Henderson believes that Ireland's stunning victory over World Cup holders New Zealand has given the reigning Six Nations champions 'reassurance.'
Ireland backed up their win against the All Blacks in Chicago two years ago by beating them on home soil for the first time ever as wing Jacob Stockdale's try underpinned a 16-9 Aviva Stadium success.
And it underlined Ireland's status as major World Cup contenders in Japan next year, with the win being accompanied by a stirring defensive effort that kept New Zealand without a try.
Ireland edged a low-scoring match to secure only their second ever victory over the All Blacks
'Having never beaten them in Dublin, it was in the back of our minds,' said Ulster lock Henderson, who went on as a second half replacement.
'To overcome that was the most satisfying thing in my mind.
'People might say 'okay, they won in Chicago, it was a one-off, almost'. But to be able to back it up again shows that we are still learning, still getting better and learning from past performances.
Jacob Stockdale scored the only try as Ireland secured a famous victory over New Zealand
'Being able to beat New Zealand again gives us reassurance that we are continuing to better ourselves.
'Internally, we know the quality of players we've got, we know the quality of training and quality of coaches we have, and everything that is done around us is done to the