Rugby league grand final

"My heart says Parramatta, but my head says Melbourne."

It's a common phrase ringing out amid rugby league fans in Sydney. And while grand finals can by a good betting option given that both teams will be giving their all (and usually the best team does win), this one's tricky.

The question I can't answer is whether the hype will have an effect. Melbourne doesn't have the same passion and expectation as Parramatta. The fairytale aspect behind Parramatta's bid is extraordinary.

Will Hayne and co be able to perform on the big stage? They did last week against the Bulldogs, so you would think they'll be able to repeat the dose.

BUT ... Melbourne is a side full of big-game players. They have half the victorious Queensland State of Origin side, including Greg Inglis, Billy Slater and Cameron Smith.

I'm with the crowd, and the rule of thumb with punting is to always allow your head over-rule your heart.

Melbourne to win.

And if you're unsure, this week's guest tipster is former AFL player Matthew Campbell from Sportsbet. Let's see what he's got to say about the grand final later today!