Conor McGregor is now a billionaire, the UFC fighter proclaimed in an Instagram post on Thursday.
"I fought for billionaires and then became one myself," the Irishman said alongside a photo of him doing his "billionaire strut" in the middle of a UFC octagon ahead of his iconic fight against Khabib Nurmagomedov at UFC 229 last year.
The fighting-for-billionaires reference is a nod to UFC executives like former CEO Lorenzo Fertitta, who is worth $1.8 billion, according to Forbes.
Fertitta and his brother, Frank Fertitta III, bought UFC for $2 million in 2001 and sold the company for $4 billion in 2016.
Dana White, the company's president, retained his role under the new ownership and made $400 million from the deal, the Los Angeles Times reported in 2017.
Read more: How Conor McGregor spends his fortune, from Lamborghinis and yachts to outrageous designer suits >>
But McGregor says he is worth more and claims to now be a billionaire himself.
It's unlikely McGregor's claim is even close to being true though.
In Forbes' 2019 ranking of the 100 highest-earning celebrities on the planet, McGregor was 65th, with $47 million banked.
McGregor's highest payday was the approximately $100 million he earned for his 10th-round loss to Floyd Mayweather in his sole boxing-rules bout in 2017.
He has had one fight since, the fourth-round submission loss to Nurmagomedov, his UFC lightweight rival, which made him $30 million richer, Forbes said.
McGregor does have other income streams. His popular Proper No. Twelve whiskey brand had already sold close to 200,000 cases when Business Insider spoke with McGregor's business partner Ken Austin earlier this year.
He also has a burgeoning clothing line, August McGregor, as well as a company, McGregor Sports and Entertainment, used to register trademarks that protect his personal brand — it sells the MacTalk app on the Apple App Store and runs the news website The Mac Life.
It is unclear when, if at all, McGregor will return for another multimillion-dollar fight in a UFC octagon. But Austin told Business Insider that Proper No. Twelve would release further expressions as it looks to close the gap with the leading Irish whiskey brand, Jameson.
