John Kavanagh has told someone trying to rip off fight fans by touting tickets to sell them at face value.
The tout claimed to be selling four tickets for Conor McGregor's upcoming fight with Dustin Poirier.
Kavanagh shared a screenshot of a message that read: "I've got 4 tickets for sale. Split any money over £10k."
Replying to the message, McGregor's coach said: "Sell them at face value to real fans."
The Notorious faces Poirier at UFC 257 next weekend in what will be the Dubliner's first fight in 12 months.
McGregor has vowed to knock the American out in less than 60 seconds, but says he is also ready for a war.
He told The Mac Life: "Dustin is a tough competitor and I would love a war. I am certainly ready for that so lets see.
"I will have landed devastating blows within that first 60 seconds. If Dustin can withstand that and stay in there, more power to him and lets get it on.
"Lets put the gloves up and lets go."
Meanwhile, Poirier has claimed that he wants both him and McGregor to be dripping blood next weekend.
He said: "I want both of us to be bleeding and really have to dig down and see who’s the better fighter. See who really wants to be in there.
“Because I don’t have a safety net. I want to be in there, and I know that, and I’d like to find out if he does. And that’s uncomfortable.
"I’m not looking forward to getting busted open but if we can get to that point where both of us are tired and bleeding, then we can see who has more grit and more want, and I think I win that fight ten out of ten times.”
