Conor McGregor has announced the birth of his baby son, Rían but what does the name mean?
The delighted dad posted a picture of him holding the newborn in his hands.
Conor added that fiancee Dee Devlin and baby Rian are well and healthy.
He told his Instagram followers: "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."
What is the meaning of the name Rían?
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.
The name is pronounced Ree-an.
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!".
