The UFC lightweight champion and his partner Dee Devlin welcomed a baby boy into the world at 8pm last night.
Conor McGregor's baby, who'll go by the name of Conor Jack, tipped the scales at 8 pounds 14 ounces at Coombe Maternity Hospital, Dublin.
The wee man's grandfather, Tony McGregor, confirmed Notorious Óg's arrival to the Irish Mirror:
There’s great news for the McGregor’s and the Devlins. Baby Conor Jack McGregor was delivered last night at 8pm in the Coombe Hospital.
The whole family are absolutely delighted. The parents are absolutely over the moon and everyone is healthy.
McGregor revealed his partner Dee was expecting their first child following his defeat of Eddie Alvarez at UFC 205, admitting he was "crapping his jocks" at the prospect of becoming a father. As of 8pm last night, he'll no longer be the sole crapper of jocks in the McGregor household.