The All Blacks are probably used to some taunting from their rivals, but a five-year-old boy in Ireland has brought laughter to the team ahead of their second test with the Irish.
Jack Banbury was filmed by his mother, Carol Brennan, chasing down members of the NZ team after a chance encounter yesterday.
With some encouragement from his mum, Jack can be seen walking towards the players shouting out: "Go Ireland! We're going to beat you, All Blacks!''
All Black lock Brodie Retallick turns around to look at Jack, laughing a little before walking towards a waiting team van.
Jack - who tells his mum: "I'm spilling my hot chocolate!'' - continues to shout out: "Go Ireland!''
At one point the little boy seems to have had enough of it all, asking his mother: "Can we go to the toy store now?"
A friend of Jack's mum can be heard in the background saying: "Come on, Jack, you little monkey. Oh you're so funny.''
Despite Jack's shouts for the Irish, he also has links to New Zealand through his dad, Byron Banbury, who is a Kiwi.
The All Blacks take on the Irish at Aviva Stadium, in Dublin, this morning (NZT) following Ireland's historic 40-29 win over the boys in black about two weeks ago.
Kick-off is at 6.30am.