The Irishman famously beat the American inside two minutes in their first fight six years ago.
McGregor was forced to use crutches to make his way to the post-fight press conference and admitted his leg was “completely dead”.
“It’s heart-breaking, it’s hard to take. The highest highs and the lowest lows in this game,” he said. “My leg is completely dead, and even though I felt like I was checking them [Poirier’s leg kicks] it was just sinking into the muscle at the front of my leg.”
“Dustin fought a hell of a fight. I thought I was better than him in the clinch, but too little too late. My leg was compromised and I didn’t adjust and that’s it, fair play to Dustin.”
“I’m very happen for him and very happy I got to come back and compete in my 11th UFC main event. I don’t know where I’m at the minute to be honest.”
“If you put in the time in here, you’re going to get cosy in here and I just have to dust it off and come back and that’s what I will do. I need activity, you don’t get away with being inactive in this business,” McGregor said.
“I’ll take my licks. I’m gutted and I put so much work in. Well done Dustin: 1-1, good man. It’s a tough one to swallow, I put in a lot of work, I’m proud of my work. We’ll get to go again and that’s it.”
Additional reporting by PA