The 32-year-old UFC superstar has been training hard after he was stunned by MMA rival Poirier in January at UFC 257.
Poirier stopped McGregor in the second round of their clash in Abu Dhabi as the Irishman's hotly-anticipated MMA return ended in a shock defeat.
McGregor will have the chance to avenge his defeat when he steps into the octagon for the third time with the 32-year-old American at UFC 264 on 10th July.
Despite focusing on his trilogy fight with Poirier, the future UFC Hall of Famer has taken time out to remind fans how serious he is about the upcoming showdown.
McGregor has been based at Straight Blast Gym in Ireland and he has been polishing up his punches with the help of long-time boxing coach Owen Roddy.
The ex-featherweight and lightweight champ has shared a picture of him training on the pads on his Instagram account.
And another post from the Notorious included a look at his chiselled physique as he counted down his return at UFC 264.
McGregor captioned the photo with a simple message of "6 weeks," which included a bomb emoji.
The Irish MMA star has the lightweight title on his radar as he sent out a warning to current champion Charles Oliveira after UFC 262.
ESPN reporter Ariel Helwani believes that the winner of McGregor vs Poirier could catapult themselves to the No 1 contender spot and face Oliveira for the title.
Speaking to UFC legend Daniel Cormier, he explained: "If Dustin wins that fight [at UFC 264], it's Dustin versus Charles, no questions asked.
"And quite honestly, if Conor wins that fight, it's Conor versus Charles for the belt. That has to be the No 1 contender fight."
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