Conor McGregor attacked UFC's "weird" rankings before deleting his post with Dustin Poirier firing back at his claim.
McGregor slammed the rankings as he took offence to his spot (No.3) behind former foe Poirier (No.2) in a now-deleted tweet on social media.
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"How is the pea ahead of me in rankings? I sparked him in 90 seconds," he wrote before removing his post from Twitter.
"Went further against most recent foe, plus took a round. After two year layoff partying and or in jail/court. What a weird little game you guys play. I'll bide my time for now but watch this space. All bums."
Of course, the Irishman branded Poirier "pea head" in the build up to their featherweight clash in 2014.
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And the American wasted no time in responding to McGregor's dig.
"Because I've been fighting real contenders and you've been hand picking opponents," he said on Twitter.
In another tweet, he added: "It's simple, climb up the ladder."
'The Notorious' has been busy on Twitter as he also responded to Oscar De La Hoya's two round knockout claim.
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De La Hoya said he'd only need two rounds to knock out McGregor, who accepted his challenge on Twitter.
"I accept your challenge, Oscar de la Hoya," he wrote in response to De La Hoya's comment.
Featured Image Credit:Topics: Conor Mcgregor, Dustin Poirier, UFC News, Fight News, UFC, MMA