It's being billed as one of the biggest tennis matches of the modern era. Two of the greatest players of the game reunited in a Grand Slam final after both looking like their days were numbered in 2016..
So who will emerge victorious tonight? Roger Federer or Rafael Nadal?
We asked the staff here at Newshub Sport…
Tom Bartlett/TV - Nadal in 5 sets
Nadal and Federer is the ultimate clash of styles - Nadal's powerful ground strokes off the forehand are fuelled by an incredible amount of top spin that few others can generate.
Federer has never been able to get the measure of Nadal because he hasn't been able to combat the rising top spin ball. Nadal knows Federer struggles with it so he targets it and has been successful on many previous occasions.
Matt Tewhatu/Digital - Federer in 4
With the exception of Sir Andy and Novak, no-one can beat Roger Federer at the height of his game, he showed that in his demolition job of Czech Tomas Berdych in the first week. He's been tormented in the past by Nadal but we forget that Nadal isn't at his peak fitness.
Considering the fact Roger has spent over five hours less on court than Nadal, fitness is going to be a huge factor and Federer has a lot more in the tank. Roger has done well to deny Father Time in 2017 and he can do it once more tonight.
Nicky Styris/TV - Federer in 4
I would like to see both players win for different reasons. Both are legends, and both have played an outstanding tournament and deserve to be the Australian Open champion.
But I believe the five-setter will have taken its toll on Nadal, and Federer knows this is possibly the last Grand Slam he will ever win, so I think he will be hungrier for victory.
Chris Forster/Radio - Nadal in 4
It's the classical style and grace of the Fed Express and that backhand, against the never-give-up tenaciousness and whipped passing shots of the Spanish bull.
I'd like Federer to do the business in four sets. He's 35 and it's been a long time between drinks. But Nadal has the bit between his teeth, and there's no room for sentimentality when it comes to Grand Slam finals.
Brad Lewis/Digital - Federer in 5
The Fed Express has been the story of this tournament. He was faced with a mammoth task of getting just to the final eight when the draw came out. Murray, Wawrinka, Isner, Berdych and Kyrgios all in his way.
Nadal is the ultimate challenge for "the fed". He is the kryptonite to the former world No.1 but something in the air is telling me that this could be a final of epic proportions and that my boy Roger will prevail. Please god let it happen.
Jeff McTainsh/Radio - Federer in 4
There's a reason Federer's regarded by many as the greatest tennis player of all time. No one else seems to deal with pressure quite like him. The final against Nadal will be epic. One of the greatest rivalries the game has ever seen, rekindled possibly for the last time in a Grand Slam final.
What a story.
There's no question Nadal has the flair, but I think Federer's balanced game and his ability to embrace the pressure will see him win a fifth Aussie Open.
Richard Wain/Radio - Nadal in 4
The absolute worst match-up for Federer's hopes of extending his grand slam record to 18 and one of the best for Nadal's chances of making it 15 majors himself, with his favoured French Open just around the corner.
The Spaniard owns the Swiss, especially on the biggest stage, and it's hard not to see Nadal making it three wins over Federer in a row in Melbourne - and seven straight at slam level - to extend his dominance to 10-two in slams, and 24-11 overall.
Henry Rounce/Radio - Federer in 5
There's no doubt Nadal has the edge on Federer, but this is Federer's moment. He's surprised everyone by making it through to the final, and this is his chance to grab that elusive 18th grand slam title. Nadal will trouble Federer's backhand with his top-spin, but Federer's playing with freedom and he knows this could be his last chance to win another major.
He'll get more free points on his serve than Nadal, and he's shown a willingness to attack on the return. His forehand's been lethal so far and his touch at the net remains the best in the game. It'll be close, but Federer has the all-round game to beat Nadal.
Kristina Eddy/Radio - Nadal in 5
Despite his fitness being questionable, Nadal's got the wood on Federer, having won their last six Grand Slam meetings, and he'll shut down Federer's game with the killer forehand that's got him to the final.
Their last major meeting was on the Rod Laver Arena in 2014, when Nadal prevailed in straight sets. He's back from injury with a point to prove and an aging Fed Express won't be able to stop him.
