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George Kambosos Jr shocked the world over the weekend, defeating Teofimo Lopez in convincing fashion to become the unified lightweight champion.
It'll undoubtedly go down as one of the greatest victories in Australian boxing history.
In the wake of the event, there has been plenty of talk about how each fighter conducted themselves before, during and after the bout.
Former champ Lopez (along with his father) have come under fire for their, shall we say, relaxed approach - as well as his post-fight antics where he gatecrashed Kambosos Jr's interview to claim that he was robbed.
Meanwhile, fans have heaped praise on Kambosos Jr for his undeniable ability inside the ring as well as his professionalism outside of it.
And that sheer dedication was on show in newly-released behind-the-scenes footage.
In a 30-minute video posted to YouTube by promoters Matchroom, the contrasting mindsets of Kambosos Jr and Lopez are on display as they prepare to lock horns once and for all.
For Lopez, he can be seen looking very relaxed (a bit too relaxed if you ask us) as he greets and high-fives various celebrity guests who come into his dressing room.
Laughing and joking, you can tell the 24-year-old's head is elsewhere and he appears distracted.
Even during his meeting with the referee, Lopez seemed on edge.
At one point, women's welterweight champion Jessica McCaskill says: "I've seen Teofimo be really emotional this weekend.
"It seems kind of like he's not really focused. He even mentioned that he has to stay focused, so I think he's kind of reminding himself that he needs to stay focused.
"I don't know, there's a lot of animosity here and some family things going on in his life, so this could be all one big distraction that leads to his failure. I hope that's not the case. Right now, it looks like the pendulum is swinging in Kambosos' favour."
When the footage cuts back to Lopez's camp, he can be seen hovering around the hallways on edge and even jokingly squaring up to Kambosos Jr's picture on the wall - his entourage even telling him to relax.
His father feeding him all sorts of nonsense, as he did in the corner throughout the duration of the fight as well, probably wasn't helping his preparation either.
As for Kambosos Jr, his demeanour couldn't have been more different.
Barely leaving the four walls of his locker room, the Aussie looked locked-in and purely focused on the mission at hand.
As he warmed up with his coaches, father and partner nearby, there was nothing flashy about it.
No showing off.
Just words of encouragement from his team and a man that looked assured of what he was about to achieve.
At one point in the video, Kambosos Jr engages in a huddle as his father lead an incredibly-powerful motivational talk just seconds before entering the ring.
The team was literally hanging off every word that came out of Kambosos Snr's mouth.
These 30-minute videos can only capture so much, so you can read into the two personas as much as you like.
You could even argue the opposite that Kambosos Jr was actually really nervous and Lopez was, in fact, more relaxed.
But now knowing exactly how the fight played out, you can see that definitely wasn't the case.
Kambosos Jr carried that pre-fight focus into the bout itself, knocking his rival to the canvas in the very first round before securing a historic point victory against the hometown fighter.
Despite all the cancellations during the build-up to the title fight, Kambosos Jr maintained his elite championship focus all the way through and refused to take his eyes of the prize.