Mixed Martial Arts legend Conor McGregor probably needs to spend some more time training to blow off his aggression.  But it might be a while, because he’s in jail tonight.

He was arrested this evening after police say he smashed a fan’s phone outside the Fontainebleau Miami Beach hotel.

The 30-year-old was charged with felony strong-armed robbery and criminal mischief.

(Mug Shot Courtesy Miami PD)

Miami Beach police say he and the fan were walking out of the resort just after 5 a.m.  The resort is the home to the LIV nightclub.

According to the arrest report, McGregor “slapped” the phone out of his hand when the fan tried taking a photo with his cell.  The report says he then stomped on it several times.

Police say McGregor then picked up the phone, which was valued at $1,000, and walked away with it.

Unfortunately for McGregor, it was all caught on surveillance video.  He wasn’t arrested at the scene, but after detectives spent the day investigating, they later found him at a Miami Beach home on North Venetian Drive.

He was booked into a Miami-Dade jail Monday night.

No big deal, argues his Miami defense lawyer, Samuel Rabin.  In a statement he said that his client “was involved in a minor altercation involving a cell phone that resulted in a call to law enforcement. Mr. McGregor appreciates the response of law enforcement and pledges his full cooperation.”

McGregor is a former two-division Ultimate Fighting Championship title holder.  He famously fought and lost to boxing legend Floyd Mayweather in August 2017.

The Irish fighter has been vacationing in South Florida as he prepares for his UFC comeback.

Just last week, he celebrated his mother’s 60thbirthday at the Versace Mansion on South Beach, where he spent the evening dining and Instagramming.

The Villa Casa Casuarina, also known as the Versace Mansion, was built in 1930 and is renowned for once being owned by fashion icon Gianni Versace — he was even shot and killed on its steps in 1997. 

It’s now a luxury hotel and is known for its Mediterranean Revival style and it’s on-site gourmet restaurant Gianni’s.

An evening there doesn’t come cheap.  Dishes include wagyu beef carpaccio, tuna tartare, and $305 caviar.  Wine starts in the hundreds of dollars a bottle and a single room usually runs upwards of $1,000 per night.

McGregor shared photos of the celebration with his fans on Instagram and wished his mother Margaret, who he called a fan of “Italian silk,” a happy birthday and called her the “most glamorous woman” he will ever know, adding: “I love you, Ma.”

She must be so proud.

It’s not McGregor’s first run in with the law. He was arrested nearly a year ago in New York City.  That’s when police said he attacked a charter bus carrying several UFC fighters. According to reports, he threw a dolly through the window.  It happened after a media day for UFC 223. 

At first, he was charged with two felonies. He ended up pleading guilty to a disorderly conduct charge.

His sentence?  The irony of this story.  Three days of anger management courses and five days of community service.