Troy Deeney and Conor Benn had a 'tear up' on Celebrity SAS: Who Dares Wins as footage stunned fans.
Former world champion boxer Tony Bellew and ex-Arsenal player Jermaine Pennant are among the sporting stars who have featured on Celebrity SAS in the past.
And this year's show featured two recognisable names in former Premier League footballer Deeney and boxing star Benn.
The popular television programme pits celebrities against each other in various challenges from the UK Special Forces selection course.
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And Deeney and Benn came head-to-head in a fight challenge.
Before the scrap, Deeney reflected on his 'aggressive' council estate upbringing and revealed many arguments would end up in 'fights'.
The 37-year-old, who had a clear size advantage, started quick, throwing a series of combinations.
Benn, who took Chris Eubank Jr. the distance in their thrilling all-British battle earlier this year, returned fire with combinations of his own, landing big shots - stunning their fellow competitors who watched on in awe.
Despite his opponent wearing a head gear, the 28-year-old dropped Deeney, who crumbled to the floor.
It was declared a draw to the dismay of Benn, who shared a warm embrace with the ex-Watford captain following the bout.
'The Destroyer' joked: "A f**king draw."
Deeney then got Benn to feel his heart rate, claiming he wanted to 'kill someone'.
Reflecting on his fight with Benn, Deeney said "We had a bit of a tear-up, yeah.
"It was good fun, the programme is just one of those things I've always talked about doing.
"When we filmed it, I was at a bit of a crossroads in my own journey as well, so it was just something I wanted to see what I could do, push my mind to.
"Funnily enough actually, today is a year of not drinking, so it's been part of that process as well."
He added: "So yeah, had a nice little roll-around with Conor, and I'll let you know who wins."
Topics: Troy Deeney, Conor Benn, Football, Boxing
Nasir Jabbar