Conor McGregor carries his daughter during the christening of his son Rían at The Vatican in Rome

Conor McGregor was every inch the doting dad on Saturday as he was spotted carrying his sleeping daughter out of the church following his newborn son Rían’s christening at St. Peter’s Basilica in The Vatican.

The MMA fighter, 33, cut a dapper figure as he carefully cradled his little girl Croia, two, who looked adorable in a yellow and black dress.

Ahead of the event, the star was seen fuelling up on coffee as he jumped into his car flanked by minders and fans.

The McGregor family were said to have arrived the Vatican via minibuses in the early afternoon through an internal door that leads directly to the Choir Chapel, where baptisms can take place inside St. Peter’s Basilica.

At the church, Conor looked sharp, teaming his three-piece navy suit with a crisp white shirt and polka dot blue tie, teaming this with brown shoes.

Securing a christening at the Vatican can be a lengthy process, with hopefuls likely having to contact their local Bishop or the St Peter’s Basilica Parish office. Parents will then need permission from their parish priest to have the baptism outside their parish, and sponsor certificates will also be needed.

Conor certainly seemed in a celebratory mood as he flashed a dazzling smile while carrying his little girl.

The sportsman appeared in his element as strolled around with his loved ones alongside him, including partner Dee Devlin, 34.

The mother-of-three cut a sophisticated figure in a form-fitting black midi dress, accessorised with a large, gold cross pendant.

Dee finished off her look with black heeled mules and a matching handbag, while her blonde locks were styled in an elegant up ‘do.

Following the christening, the family took time to admire St. Peter’s Basilica before making their way outside.

Once outside in the parking lot, the Irish fighter relaxed further as he removed his jacket.

He was joined by his loved ones where they all poured into waiting vehicles, with one relative seen carefully loading little Rían’s buggy inside.

MailOnline have contacted Conor’s representatives for comment.

The previous day, Conor and his family stepped out for a pre-baptism meal ahead of the big day.

Conor looked dapper as he donned a open-collared white shirt, a black waistcoat and blazer for the special occasion.

The UFC star completed the look with a pair of black trousers and a matching pocket square as he sported his signature side-slicked hair and bushy beard.

Meanwhile, Dee looked chic in a short-sleeved orange, pink and yellow floral midi dress, which she accessorised with black stilettos and a fuchsia cross-body bag.

She wore her highlighted chestnut locks in a sideswept parting and appeared focused on her children as she stepped out of the car.

Swarms of fans gathered in the street to get a glimpse of the star as he left the luxury Hotel De La Vilee.

The fighter had booked out the entire terrace of the glitzy hotel for dinner and an aperitif before the special church service.

Conor’s fans waved their phones and large pictures of the fighter in the air to catch his attention as he climbed into a waiting car.

Conor and long-term love Dee plan to get married soon.

They met at a night club in Ireland when Conor was just 19 years old.

Conor and Dee welcomed baby Rian in May and the fighter proved he was loving life as a dad of three as he pushed his son’s pram through the Italian streets.