The fight is almost here and things are getting heated.

Conor McGregor arrived in Las Vegas on Tuesday for his fight against Floyd Mayweather, and he got to work right away.

McGregor, who is never afraid of dishing out some trash talk, got into a heated shouting match with his former sparring partner Paulie Malignaggi.

Dana White previously released video of the two sparring, showing a clip of McGregor knocking down Malignaggi.

On Tuesday, they faced off again. Here's a look at the confrontation.

 

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Story updated above.

The gloves are coming off.

After Conor McGregor and former sparring partner Paulie Malignaggi went back and forth over their training sessions, Dana White has decided to show some tape.

The UFC president released video of McGregor and Malignaggi sparring on his Twitter page:

 

 

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Story updated above.

Boxer Jessie Vargas alleges Conor McGregor was knocked out while sparring
The UFC superstar has been training for his Floyd Mayweather Jr. superfight—and Vargas' claims have been attracting attention.

The worldwide press tour for the Conor McGregor and Floyd Mayweather Jr. boxing match saw plenty of insults, trash talk, flashy watches, and mink coats, but not much fighting. And now that the two fighters are done with the main promotion for the fight, they can get back to training.

But according to one fighter, McGregor might need some extra time in the gym.

American boxer Jessie Vargas, a former two-weight world champion, spoke with Villainfy Media and said that he heard from other boxers that McGregor has already gone down in training.

"He got knocked out in sparring already, man!" Vargas said, according to Darragh Murphy of Joe.co.uk. “The boxing world is small; it's a small circle.”

McGregor's team responded to the knockout reports, disputing the take by Vargas. McGregor's managment spoke with The Telegraph and said: "The guy mentioned by Jessie Vargas is Brandon Rios, not Brad Wheeler. Neither have sparred with Conor."

Here’s Vargas on the video:

Of course, it's important to note that no other source has independently verified Vargas' claims—so for right now, he's the only person who has suggested that McGregor was "knocked out" in his training sessions.

No matter how good McGregor gets in his training, the collective Vegas wisdom is that the Irish UFC champion faces long odds against Mayweather in the boxing ring on August 26. McGregor has never partook in a professional boxing match, and while he’s a champion UFC fighter, boxing is a very different sport.

The press tour brought plenty of headlines for McGregor and Mayweather, and, with just weeks before the actual fight, expect a few more interesting stories until then.