Dee Devlin has given birth to her third child with fiancee Conor McGregor.
McGregor took to instagram to share the news, and introducing fans to his baby boy Rian McGregor as he revealed both mother and baby were doing well.
He said: "The McGregor Clan is now a family of 5. Healthy baby boy delivered! Baby and Mammy Wonder Woman are doing great! God I thank you for everything you give to me and my family in this world. My new born son, Rían McGregor".
Devlin and McGregor have been in Dubai with their two children, Conor Jr and Croia, after his last UFC outing in January.
McGregor is due to link up with coaches John Kavanagh and Owen Roddy in the coming days to fine-tune preparations for his fight with Dustin Poirier on July 10.
And earlier this month they threw a party to celebrate Conor Jr's fourth birthday while Devlin also celebrated McGregor topping the Forbes sports rich list last week.
Speaking on Wednesday, May 12, McGregor told fans on social media that Devlin was due to give birth in a week.
He posted on Twitter: "Becoming a father! Another one due in a week! A lot of excitement building in the house now!".
The name is related to the Gaelic name Ryan and the meaning of the name Rian is king.
It is primarily used as a male name and is of Gaelic origin.
It pronounced Ree-an.
