Boxing promoter Eddie Hearn was left red-faced, after he dropped an F-bomb on Sky Sports News UK, completely unaware he was live on air.
Hearn and his Matchroom Boxing team have been working around the clock to bring boxing back to the world, after the coronavirus pandemic put all fights on hold.
To ensure this, fights will be staged behind closed doors in the garden of Matchroom's headquarters, where Hearn lived as a child.
Four events are planned, with the first scheduled for August 2 (NZ time), ending with a heavyweight showdown between Dillian Whyte and Alexander Povetkin on August 23.
As the interview with Sky began, Hearn shouted out, "Shamone mother f******!"
There was a moment's silence, before Hearn asked: "It's not live, is it?"
When he was told it was, Hearn's face immediately changed, as laughter erupted from around the set.
The video quickly did the rounds on social media and Hearn - a good sport - said: "That was awkward... when you think it's a rehearsal."
A super middleweight contest between Ted Cheeseman and Sam Eggington will headline the first fight night in Hern's backyard.