Ever since Conor McGregor's boxing match with Floyd Mayweather last summer, UFC fans have been wondering when - or if - he'll actually return to the Octagon.

McGregor hasn't competed since his victory over Eddie Alvarez in 2016 at UFC 205, where he claimed the lightweight title.

Not even president Dana White has seemed too confident about the Irishman returning. He said last month when asked what the future holds: "I don't know.

"I don't wait for anybody. I run my business, I keep rolling and that's it. The kid's got $100 million. Who knows, he might never fight again."

McGregor certainly made enough money from the Mayweather fight to retire, though there have been rumours of a rematch between the two on McGregor's turf.

The Notorious hasn't given much away about his future in UFC but now, in an epic Instagram post, he's confirmed he's ready to make a return.

According to McGregor, he offered to fight Frankie Edgar at UFC 222 when Max Holloway pulled out, but there wasn't enough time or money to make it happen.

And because he missed out, he's now motivated to make a return and show the world why he is still the best fighter in UFC.

MCGREGOR SETS THE RECORD STRAIGHT

"I am fighting again. Period," wrote McGregor. "I am the best at this.

"I put my name forward to step in at UFC 222 to face Frankie Edgar when Max Holloway pulled out, but I was told there wasn't enough time to generate the money that the UFC would need.

"I was excited about bouncing in last minute and taking out the final featherweight, without all the rest of the stuff that comes with this game.

"Please respect the insane amount of work outside the fight game that I have put in. On top of the fighting.

"I am here. It is on them to come and get me. Because I am here. Yours sincerely, The Champ Champ."

Well it's about time - although it's a shame a fight with Edgar couldn't happen.

Reports state McGregor is in negotiations over two UFC bouts in 2018, but one thing's for sure: he's making a comeback.