The Irishman called it a day last April and broke the news on Twitter.
He wrote: “I have decided to retire young. Thanks for the cheese. Catch ya’s later.”
Coach John Kavanagh appeared to confirm the news by tweeting: “Well was fun while it lasted.”
UFC president Dana White then revealed McGregor would not be fighting Nate Diaz on the UFC 200 card.
But days later it emerged he was to perform a U-turn. Instead of retiring from the UFC, it became clear the Irishman had fallen out with the sport’s bosses over promotional work.
In a statement issued days later, McGregor said: “I am not retired.”
“I am just trying to do my job and fight here.
“I am paid to fight. I am not yet paid to promote.
“I have become lost in the game of promotion and forgot about the art of fighting.
“There comes a time when you need to stop handing out flyers and get back to the damn shop. 50 world tours, 200 press conferences, 1 million interviews, 2 million photo shoots, and at the end of it all I’m left looking down the barrel of a lens, staring defeat in the face, thinking of nothing but my incorrect fight preparation.
“And the many distractions that led to this. Nothing else was going through my mind.
“It is time to go back and live the life that got me this life.
“Sitting in a car on the way to some dump in Conneticut or somewhere, to speak to Tim and Suzie on the nobody gives a f**k morning show did not get me this life.
“Talking to some lady that deep down doesn’t give a f**k about what I’m doing, but just wants some sound bites so she can maybe get her little tight a** a nice raise, and I’m cool with that too, I’ve been giving you all raises. But I need to focus on me now.
“I’m coming for my revenge here.
“It is time to be selfish with my training again. It is the only way.
“I feel the $400million I have generated for the company in my last three events, all inside 8 months, is enough to get me this slight leeway.
“I am still ready to go for UFC 200.
“I will offer, like I already did, to fly to New York for the big press conference that was scheduled, and then I will go back into training. With no distractions.”
Now, McGregor is back. The stakes have never been higher. And standing is his way is the mighty Mayweather.
As to what’s next, that’s anyone’s guess, but one thing is for sure – McGregor will be sitting on a small fortune.