A national hero could come seriously unstuck here, even if putting his hand up to fight Vatuvei suggests he is already a little unglued.
"Yeah, possibly," Murray says to a suggestion he might end up looking a bit silly if he is knocked out early.
"That's one thing that we hope won't happen. We've gone out there to train to make sure things like that won't come about.
"In rowing the mental thing is making sure you are ready for the whole entire journey, that two kilometres. This is the same."
No, it's not. Then again, Murray does spend a lot of time sitting on his backside in his day job.
We can think what we like about the virtues of non-fighters slugging each other for our entertainment, but there's no denying the public's interest has been piqued by this match-up. And there's even a school of thought that Murray has a chance.
Spot the difference
Manu Vatuvei
Nickname: The Beast
Age: 26
Height: 1.89m
Weight: 106kg
Day job: Bone-crushing ball runner for the Warriors and Kiwis.
Eric Murray
Nickname: None
Age: 30
Height: 1.96 m
Weight: 98 kg
Day job: Champion rower, national hero.