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John Kavanagh, McGregor's long-time trainer, was speaking with Ariel Helwani just days before the 32-year-old takes on Dustin Poirier for the second time.
But while giving insight into the Notorious' training camp, he appeared to be give a little too much away when he said McGregor had been training orthodox a lot more than his usual southpaw approach.
Seemingly realising he had slipped up, he then asked Helwani to delete that part from the video interview.
"Let's see if some of the predictions we made amongst ourselves about what would be the damaging shots, would training mostly in orthodox for the whole camp have paid off," the 44-year-old said.
After a brief pause, Kavanagh added: "Take that away, take that away, can you cut that off?" - to which Helwani said he would do.
However, that section of the 43-minute-long chat is included in the YouTube video and some fans were a little annoyed by that decision.
While Kavanagh is not looking past Poirier on Sunday morning, he is hopeful that McGregor takes on Nate Diaz in a trilogy bout at some point in the near future.
"It kind of has to, doesn't it!? " he told SPORTbible.
"Batman and Joker have to fight one more time. If you were to ask me, that's the one I'd love to see the most. I just think they gel together so well. I would definitely like to see at 155.
"You can't be in the business of MMA and not at least admire the Diaz brothers. Their approach to fighting and genuinely one of the few genuine anyone, anytime, anywhere fighters out there. He is that guy. I'd be curious to see him on the scales at 55. That's not easy."
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