But it was one of those punches in particular that did the bulk of the damage and ultimately ended Browne in stunning fashion in front of 5000 people at Wollongong Entertainment Centre.
Now Gallen has revealed the perfect plan and weeks of training behind that monster right hook that caught his opponent flush behind the ear and knocked Browne off his feet.
It turns out Gallen’s trainer, Graham Shaw, devised that exact scenario and hammered it into his fighter in the lead-up to the bout.
“We practised that punch,” Gallen said of the right hook that dropped Browne the first time, before he got to his feet only to fall again soon after.
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“Graham Shaw, early on we just got the fitness up and punching pads, then all of a sudden one day I went training and Graham said ‘you’ve got to practice this’.
“We got in tight, practised little shots inside and then stepped outside and a big overhand right. We just kept working on it the whole time.
“That was the punch he said would get him. When the opportunity came up today I threw it.
“I thought I got him good, I knew I got him, I knew I had hurt him.”
Browne later admitted he was shocked by the speed and ferocity with which Gallen came forward right from the opening bell.
Gallen pinned Browne on the ropes with a flurry of shots to the body, then stepped away and threw the big right hand which dropped his opponent.
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Browne continued fighting only to be stuck on the ropes again, and then Gallen finished him off with a combination of blows to the head.
Browne was looking worse for wear but he fronted media afterwards.
He was asked about that one big punch that essentially ended any chance he had of winning the bout.
“I don’t know where exactly I got hit the first shot, but it was someone around here (back of head),” he said.
“Basically I can’t hear out of my left ear. It took the equilibrium off me and I couldn’t recover.
“He did the swarming and good luck to him.”
Browne revealed he had stepped away from the plan his trainers had devised for the fight in the hope of beating Gallen.
Browne’s plan was to square his body front-on to Gallen, allowing him to throw a fast right glove to his opponent’s head.
Browne is known as a knockout artist and if he connected a big right hand Gallen would have been in trouble.
“I didn’t exactly listen to the game plan. I wasn’t squaring up enough,” Browne said.
“I think his nose started going red straight away from a few jabs so I thought ‘we’re off to a good start’, but it didn’t turn out that way.”