Before UFC star Conor McGregor allegedly assaulted him, Italian DJ Francesco Facchinetti felt like he was "living in a movie."

On Saturday night, the two spent over two hours together at a party in Rome, discussing everything from the Irishman's job to his new £2.6 million Lamborghini yacht.

Before reportedly punching the singer, McGregor allegedly exchanged phone numbers with him, leaving him with a fractured nose and split lip.

Mr. Facchinetti made his claims over the weekend on social media and has now expanded on the events leading up to the alleged incident at the opulent five-star St. Regis Hotel.

"I just wanted to make it clear that I am - or actually I was at this point - a great fan of McGregor, so when I was told I could go and see him I thought it would be nice to be there with him and for two-and-a-half hours it seemed like I was in a movie," he said on his YouTube channel.

"Being able to communicate with McGregor... My Brazilian wife talked to him about Brazil, and we spoke about Jose Aldo, and he said he had to fight in Brazil, but he lost to Khabib [Nurmagomedov] and didn't go back.

"He told us a lot of interesting information, and we had a good time talking about Rome and the Colosseum. I suggested he visit Paestum and Pompeii, and he said he would get his Lamborghini boat. It was a pleasant conversation.

"After that... obviously my words are one version, then we also have to listen to his version if he wants, but I had about 10 witnesses with me, of which four were Italian."

The hotel's spokeswoman said in a statement: "We will provide the authorities with our complete cooperation in their inquiry.

"The safety and security of our guests and employees is always our first priority."

Mr. Facchinetti went on to say: "His brain went off, he saw black, and attacked me in front of the ten people who were there with me, in front of his bodyguards who had become my friends in the meantime (we had also exchanged phone numbers, with his bodyguards and his Irish friends).

"So instead of slapping me, he punched me. He hit me exactly here [points to upper lip and nose], so he didn't hit my jaw or cheekbone, but he hit this part... He was very close to me, about 20-30cm, with his right hand, not his nasty left (hand), he hit me exactly here [points to upper lip and nose], so he didn't hit my jaw or cheekbone, but he hit this part... The lip and nose are a little puffy, as you can see.

"I didn't fall down, I'm not sure thanks to which strange miracle of the world I managed to remain standing."

McGregor and his family spent last week in Rome, meeting Roma manager Jose Mourinho and naming his three-month-old son Rian in the Vatican.

In the Italian city, the Dubliner will also pick up his new boat.

In July, he injured his leg in the first round of his trilogy bout with Dustin Poirier, which he is now recovering from.

And his alleged victim ended his video by confessing that the weekend's events had left him saddened.

"This makes me extremely upset, primarily because it bothered me on a human level, and it was horrible. Second, I am an MMA fan, and as I already stated, a McGregor supporter, who has done so much for the sport, therefore I am very sorry for what occurred "he stated

"Third, because I'm trying to invest in the MMA world in Italy, I work with a lot of fighters, both MMA and boxing, and it irritates me that the fighting world is somehow linked to the bully world.

"So I'm very sorry, very sorry," she says, "but I can assure you that it was a bad thing for me and the people who were next to me."