Danny Green prepares to face off with Anthony Mundine
They last faced-off in the boxing ring nearly a year ago.
And Danny Green has revealed he's nervous as he prepares to come face-to-face with boxing rival Anthony Mundine on I'm A Celebrity...Get Me Outta Here on Sunday.
The boxing legend said his 'knees are knocking,' and that he's 'starting to poop his pants' in a clip shared to Instagram from the South African jungle.
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'I'm starting to poop my pants': Danny Green has revealed he's nervous as he prepares to come face-to-face with boxing rival Anthony Mundine on I'm A Celebrity...Get Me Outta Here on Sunday
'Hey guys, tonight's the night I'm finally heading into the jungle and I don't know what to expect,' he said.
'My knees are knocking and I'm starting to poop my pants...can't wait.'
The Australian athlete wore a blue sweater and off-white cargo pants, while displaying his unique haircut in the clip.
A year ago, the pair famously took each other on at Adelaide Oval in front of 27,000 people, with boxer Danny avenging his 2006 unanimous-decision loss.
The feud is being billed as a massive drawcard for the popular reality show, with Channel Ten releasing a second teaser clip of a meeting between the two of them.
The hard-hitting champions calling each other 'pussycats,' and appearing to challenge each other to a third title fight.
'I'll whip your a**e,' Mundine tells Green.
'Sometimes a spoiled child needs a smack': Danny Green signals a 'rumble in the jungle' when he enters I'm A Celeb as he insists 'I'm not afraid by that meek and mild little fella'
'We could walk up the hill and do it now, Choc, no problems,' Green responds as hosts Julia Morris and Dr Chris Brown and the other camp mates watch on.
'I'm not doing it for free, I want to get paid for this,' Mundine tells him.
But fans are expecting plenty of biff, with Danny telling BW magazine he wasn't intimidated by his long-time competition.
'I'll whip your a**e,': The pair had a feisty exchange in a second teaser clip released by Channel Ten
Two to tango: Champion Danny, 44, certainly didn't give any indication that he's going to hold back when he enters I'm A Celebrity... Get Me Out Of Here on Sunday
'I am not in any way intimidated by that meek and mild little fella. He is acting like a spoiled child and sometimes a spoiled child needs a smack,' he said.
When pressed further on his thoughts on his longtime rival, Danny continued: 'Anthony Mundine is just fairly meek and mild, he is not a strong character and therefore that lack of strength shows in his behaviour.'
I'm a Celebrity ... Get Me Out of Here! airs tonight on Channel 10 at 7.30pm