Conor McGregor and Dee Devlin threw a birthday bash in Dubai to celebrate their son turning four.
The couple shared a number of photos on social media to mark the occasion for their oldest child, Conor Jr.
Dee, who is due to give birth to the couple's third child in the next few weeks, posted: "Happy 4th Birthday Baby boy!!"
McGregor said: "Happy birthday my champion!" and tagged his son's Instagram account, which has almost 270k followers.
Conor Jr can be seen driving around in a toy car in one snap, while another shows him queueing up at a popcorn machine.
The party had pet animals, superheroes and painting for children.
Dee could be seen with her hand on her bump in one photo, with the couple laughing in another.
McGregor and his family have been spending time in the Middle East ahead of his trilogy fight with Dustin Poirier this summer.
The Dubliner is aiming to get his career back on track after suffering a shock loss to the American back in January.
But the former two-weight champion has been told to forget about getting a shot at the welterweight title.
Colby Covington told Submission Radio : “I think it’s laughable. It’s comical. I mean, you just got sparked by Dustin Soyier. Go ask Dustin Soyier about the times we used to train together.
"He used to cry. He lived in the gym crying. He told his coach Mike Brown (fake crying), ‘Oh, man, Colby’s so tough. I can’t stop him. Why’s he so good? Why does he use his pace so much? And I quit like a little b***h!’
“So you just got sparked by Dustin Soyier, so sit the f*** down, Conman McGregor."
