On the verge of another almighty 'mate versus mate' battle - State of Origin Game II in Perth - the Gold Coast Titans had a very similar clash with just as much rivalry recently.
Especially in the Harrison household, when twin brothers Isaac and Zane faced off for the first time when the Future Titans Under 16s took on the Northern Rivers Under 17s as a curtain-raiser to the club's Round 14 home game against the Rabbitohs.
It has been a fairytale year for the duo with both part of the Northern Rivers Titans side who stole victory from the jaws of defeat in the Andrew Johns Cup decider in early April - Zane coming up with the miracle try to clinch the win in the last play of the game.
Many a times the pair have donned the same jersey and ran out on the field together, but the clash just over three weeks ago was the first occasion the pair went to battle at opposite ends of the field.
"It was the first time we've ever played against each other... it was good," Isaac said.
"We've pretty much played together our whole life."
Zane - a crafty playmaker currently at school at Palm Beach Currumbin and contracted with the Titans - starred in the halves for the Future Titans in their big 40-28 win over the Northern Rivers, which saw Isaac toil hard in the forward pack, laying the platform for points to roll through - especially in the opening stanza.
As favourites, the 16-year-old halfback was expecting plenty of heart from the boys south of the Tweed, who entered the clash as the outsiders.
"It was tough. They were obviously the underdogs and came out and put it to us in the first half," Zane said.
"We showed resilience in the second half and scored a few points in the backend to get the win."
The hard-fought contest certainly didn't disappoint the boisterous crowd in attendance at Cbus Super Stadium, a venue the Tweed Heads twins were thrilled to have played at.
"It was so good and such an honour. It's got such a good atmosphere and it's such a great stadium," Isaac said.
"It's what you dreamed about when you were a little kid and the fact we got to do it was pretty cool."
Set to return on the same side of the field and playing together again, Zane was asked what his reward was for getting bragging rights over his brother in the clash.
"I'm not sure... he might have to cook me breakfast a few times," Zane said.
It can't be confirmed nor denied if Isaac has fulfilled his brother's request yet...
