The showdown at the WIN Entertainment Centre is tipped to be the most watched heavyweight bout in Australian boxing history, with Gallen (10-0-1) and Browne (29-2) to battle over six rounds. It's the biggest fight at the WEC since Anthony Mundine fought local Shannan Taylor 12 years ago.

Ahead of Tuesday's weigh-in in Wollongong, Gallen told the Mercury that he was feeling fit and confident he could get the job done.

"My body's good, I've just got to get my mind right. All the hard work's done now, I've got to get in there and be fit and healthy, which I am. And I've got to do what I've trained to do," he said.

"Every fight for me is big, every sparring session for me is big. I go into people's gyms and everyone wants to hurt Paul Gallen. That's where I get a bit of an edge over other opponents, every sparring session I have is like a fight. Obviously the (Mark) Hunt fight was a big fight, against a world-wide known opponent, and this guy now has been the number one heavyweight in Australia for the past 10 years. So it's a huge fight for myself. I've got to get in there and get it done.

"I was a Lucas Browne fan. I used to watch him when he was getting started, fighting in the MMA, and I used to go watch his boxing fights. And he's deserved the big fights. But on the other hand, he hasn't shown me respect. His attitude towards me is pretty bitter and jealous, and I think that comes down to the notoriety and the money that I've earned out of boxing. He's got all of that out of this fight, he's got a good pay day, he's got some notoriety, he's picked up some Instagram followers which I know is a big concern for him. He just has to get the win now, but I'm going to get it on Wednesday night."

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While happy to give out a few verbal barbs, Gallen insists that his biggest focus remains on himself.

"I have get myself into a mindset where I've just got to get it done. It's been 11 hard weeks of sweat and really training hard. I've had good, hard sparring sessions against some of the best guys we can find in NSW, and even traveled to Canberra to spar with Arsenne Fosso. I've done so much hard work to get it done, so I've got no reason to not go in there confident," he said. "I've got to worry about what I've got to do on the night. I'm under no illusions about how hard this is going to be, it's going to be a big test, but I can get this done and win the fight."

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The two fighters will arrive in Wollongong on Tuesday ahead of the bout, and Gallen said he was happy to be here. "When the option for Sydney or Wollongong was available, I said let's take it to Wollongong. It's a regional town, let's take it down there and give them something to look forward to," he said.

"I know it's a Wednesday night, which makes it hard for some people to get out. But at the end of the day, it's an event being held in your town. I'm happy to be down there and giving the people some entertainment."