Tyson Fury has claimed that he had a few pints just moments before stepping out to take on Deontay Wilder in their first bout.
The 'Gyspy King' has been parachuted in to help train his younger brother Tommy ahead of his grudge match against YouTuber Jake Paul in December.
As the current WBC heavyweight champion of the world, he's not exactly a bad person to have in your camp to be arming you with every tip and trick in the book.
But rather than heap more pressure on Tommy, big bro Tyson has opted for a slightly different approach by encouraging him to relax a bit and enjoy the moment - even instructing him to get down to the pub a few times a week.
"It relaxes you when you're in training camp," Fury told JOE.
"It teaches you not to be so strict, it teaches you to relax and enjoy and that's what it's about.
"Back in the past, men used to fight 20 or 30 rounds. They'd have a bottle of brandy before they went out there and had a fight. No one can tell me, not one nutritionist or conditioner and all this new science stuff today... men back in the day didn't have food to eat for three or four days and then fought 25 rounds. Today, we're a little bit softer than we were years ago."
Tyson then revealed a little cheeky secret about his own preparations ahead of his first ever bout against rival Wilder.
"I've got that old school mentality," he added.
"Before Wilder 1, I went downstairs and had two pints because I felt like it. Didn't do me any harm did it?"
Tyson's history with alcohol is pretty well documented, previously admitting that he was drinking up to 12 pints a day during his darkest days.
But since then, Tyson has lost an incredible amount of weight, recaptured his heavyweight titles and has become one of the most adored athletes on the planet.
Now, just a few short months after winning his trilogy against Wilder, the 33-year-old is lending his services to his younger brother as he looks to become the man who derails the Jake Paul hype train.
Tyson, as you can probably imagine, hasn't just been hands-on in the gym though.
It turns out he's been bombarding Paul on social media too, engaging in the same sort of mental warfare that saw him successfully get in Wilder's head.