And the Irishman appears to be in tremendous physique having shown off his body in two new photos ahead of his UFC clash.
He took to Instagram to reveal his remarkable body transformation.
The 32-year-old shared a clip of his body, accompanied with the caption: "Jacked and loaded, what's next ?"
He also posted another image of his muscly back, with the caption: "Who has your back in all this?"
McGregor is getting himself in peak condition with his UFC career hanging in the balance following his crushing defeat to Poirier earlier in the year.
He suffered his first KO defeat of his MMA career to 'The Diamond' at UFC 257.
The former UFC double champion is looking to settle the rivalry as he goes to battle with the American veteran for a third time.
July 10th :dart:- The Diamond (@DustinPoirier) April 20, 2021
McGregor has vowed to "puck these peasants around" ahead of his second UFC appearance of the year.
He tweeted: "Watch me open up the arts and puck these peasants around. Starting July 10th."
Watch me open up the arts and puck these peasants around.- Conor McGregor (@TheNotoriousMMA) May 3, 2021
Starting July 10th. :crown: pic.twitter.com/dLIsq3sAfh
Poirier, though, insists he will stop McGregor again when they meet in Las Vegas.
He told ESPN: "I'm going to stop Conor again. On July 10 I'm going to get my hand raised and I'm going to finish Conor McGregor again."
Who takes it? Let us know.
Featured Image Credit: Conor McGregor/Instagram
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