Conor McGregor best have a stockpile of nappies on standby, as his partner Dee Devlin has just given birth to their fourth child.
The MMA star shared the news with fans via social media, saying that his long-term girlfriend and his newborn son were both 'doing amazing'.
He wrote in a tweet on Thursday (30 November) evening: "My baby boy is born! Mammy and baby doing amazing, 8.1lbs of prime Irish double champion beef."
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McGregor had also shared a snap of him and a heavily pregnant Devlin last night.
The couple and their kids have reportedly been sunning it up in Dubai in recent weeks and they both sported glowing tans.
He said: "Up early tomorrow to bring our new baby boy in to this world, say a prayer for us! Let’s go Mammy."
The new addition is the third lad to join the McGregor brood - so the UFC legend will have a trio of mini-me's running around in a few years.
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The 35-year-old also shares son Conor Jr, who was welcomed into the world in 2017, daughter Croia who was born in 2019, and son Rían who arrived in 2021, with Devlin.
He finally proposed to his childhood sweetheart in August 2020, but the pair are happy not getting hitched for now.
The couple have been together since 2008 after meeting in a nightclub when they were teenagers, with McGregor saying he thought she 'seemed nice'.
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Recalling the moment to VIP Magazine, he said: "I asked her to come over and we just started chatting. She seemed like a nice girl, and I like good girls."
Thankfully, the attraction proved to be mutual, with Devlin admitting she took an instant shine to McGregor.
"He's very funny," she said. "He always keeps me entertained and makes me laugh."
McGregor has said that, over the years, Devlin has remained by his side throughout his career, even when he had 'nothing'.
The Irish star has been preparing for his return to the octagon as well as the arrival of his new child.
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He was forced to take a lengthy hiatus from the UFC after he broke his leg while taking on lightweight rival Dustin Poirier in July 2021.
After his two-year break, McGregor is set to battle it out with Michael Chandler sometime next year.
The two starred on reality series The Ultimate Fighter together, where they both coached contestants.
No date or venue has been set for their face-off yet, but McGregor is about to have his hands seriously full with a newborn.
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Congratulations, guys.
Featured Image Credit: TheNotoriousMMA/XTopics: Conor McGregor, Sport, Parenting, Celebrity