'You've done nothing': Paul Gallen 'bulls***' makes Barry Hall snap

AFL great Barry Hall has snapped at Paul Gallen's "bulls***" during a fiery press conference exchange on Wednesday to promote the boxing bout between the pair.

Hall and the recently retired Gallen are set to duke it out at Margaret Court Arena on Friday night in a fight that's been dubbed the 'Code War'.

Gallen had been doing the majority of the trash-taking in an attempt to drum up animosity and publicity for the bout, with Hall remaining fairly quiet by comparison.

OUCH: Paul Gallen 'stitch up' leaves radio presenter with broken rib

The league legend continued the barrage in Wednesday's press conference.

“There’s no pressure on me whatsoever. He must not have heard me say I’ve got no excuses ... I know he’s not the sharpest tool in the shed ... he might be deaf too,” Gallen said.

“I’m looking forward to getting in there and absolutely finishing him, to be honest with you.

“The chat, the talk, things stacked in his favour, it’s all there. I’ll say it again, I’ve got no excuses come Friday night.

Paul Gallen has been trying his best to wind up Barry Hall. Pic: AAP

“I’m going to get in there and I’m going to bash him.”

Gallen then tried to hijack a reporter's question to Hall when the retired AFL player finally snapped.

“Shut up, mate. I'm sick of hearing the bullshit."

It wasn't much from Hall but proved more than enough ammunition for Gallen to work with.

"Getting a bit angry, big fella?" Gallen taunted.

"Fire up. It’s about time you fired up, you’ve done nothing."

The NRL great even had some barbs left over for retired boxer turned fight promoter Danny Green, who has also been helping Hall prepare.

“You’ve been training him haven’t you? Your side has been training him," Gallen fired at Green.

Green took the swipe in his stride, before offering a diplomatic outlook on the fight.

“Gal you’re welcome to come hit the pads, mate. I’ve done pads with you, I’ve done pads with Barry," Green replied.

"I don’t know who’s going to win. I know for a fact Barry could knock you out and I know you could knock Barry out.

"I’m just the promoter so it’s not as if I’m on Barry’s team, on anyone’s team."

Gallen has criticised several aspects of the fight that he insists are stacked in Hall's favour.

Barry Hall and Paul Gallen exchanged barbs during their Wednesday press conference. Pic: AAP

Speaking to Fox Sports on Tuesday night, Hall hit back at Gallen's claims, labelling the 38-year-old "arrogant" and disrespectful.

“He’s getting fired up about me not doing anything for the promotion. I know you need a bit of ego to make it to the highest level.

“But there is a difference between ego and arrogance and I think it might be the latter here. I think he is quite arrogant and some of the things he has said haven’t been very respectful but he has done that in the past.

“We will see Friday night if he can walk the walk.

“He signed the contract, he knew the terms — he didn’t have to sign it. We had other plans in place regardless — did he read the contract? No point whinging about it now.”