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'The Diamond' became the first man to knock McGregor out in MMA when he put him away in the second round and inflicted the Irishman's third defeat inside the Octagon.
Poirier avenged his 2014 loss to McGregor with the biggest win of his career and showed why he's one of the nicest guys in MMA with his interview.
Asked by BT Sport's Adam Catterall about whether he felt he showed lightweight champion Khabib Nurmagomedov something special, a humble and honest Poirier said: "I'm not trying to impress him [Khabib], I'm just trying to feed my family."
The Louisiana fighter's wife Jolie was animatedly cheering him on cageside and shouting "you'll never doubt my husband again" after seeing his sensational performance up close.
Collecting the biggest pay-day of his career, Poirier paid tribute to his other half and childhood sweetheart for sticking by him in tougher times.
Fighting back tears, Poirier added: "I didn't have a car, she'd drive me to shows. We'd use her car, she'd stay in the broken down hotels and motels with me.
"I don't want to get emotional, but that's my girl, man. She's stuck it out with me. This win is as much hers as it is mine."
After showing an evident lack of interest in regards to talk about his next fight, we saw how Poirier glowed up when he was talking about his family, who clearly mean so much to him.
McGregor was equally as respectful in defeat and gave total praise to Poirier when he spoke to Jon Anik in the Octagon, as well as his post-fight presser.
Both fighters shared a wonderful exchange after it was all done and dusted, with McGregor telling Poirier, "We'll do it again" after their series was levelled.
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