UFC champion Conor McGregor has announced he and fiancée Dee Devlin have welcomed their third child

 Conor McGregor has announced he's become a dad for the third time as his fiancée Dee Devlin has given birth to a beautiful baby boy.  The 32 year old UFC star took to his Instagram feed to share the happy news on Monday 17 May as he posted a gorgeous snap of himself wearing a V-neck shirt while holding his baby up in his arms.  The newborn could be seen with his eyes shut as he donned a white babygrow with a matching hat.  In the caption, the doting dad revealed his name is Rían as he wrote: "The McGregor Clan is now a family of 5," followed by a red heart emoji.  Get exclusive celebrity stories and fabulous photoshoots straight to your inbox with OK!'s daily newsletter. You can sign up at the top of the page.  Conor continued: "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," with a praying hands emoji.  He added: "My new born son, Rían McGregor," followed by a red heart emoji.  His ...