Conor McGregor and Nate Diaz 'Dance' at Their News Conference

"He fights with his heart", McGregor said.

"It's martial arts. You should be ready to fight anyone at any time".

And of course, McGregor talked about his fight with Diaz and the negotiations to make the fight happen.

Conor McGregor will face Nate Diaz at UFC 196 on Saturday. But if we fought, I'd beat him.

Warning: Most of the following video clips contain extremely NSFW language. Diaz went into a fists-raised stance, which is not unusual for these sorts of photo-ops, but his right arm was extended far too close to McGregor's face for the Irishman's liking. While some of his counterparts attend media events wearing an understated t-shirt and baseball cap, McGregor is most comfortable delivering post-fight invectives in a designer suit. For Albuquerque's Holm, it's her first chance to defend her title and cement her place at the top of the 135-pound weight class. For Tate, the motivation is obvious - to win the title in her second shot at UFC gold.

McGregor also quashed the gap between him and Diaz following a very heated press conference and emphasized that it is all about business.

The UFC may not be big enough to contain Conor McGregor in the future, as the Dublin fighter said he is open to a boxing match against retired undefeated champion Floyd Mayweather. It is me that holds the key to that fight.

When McGregor meets Nate Diaz at the MGM Grand Garden Arena on Saturday, the Irish brawler is taking on a challenge that would seem impractical, unsafe or downright ridiculous to most athletes in weight-dependent sports. Diaz agreed to be the replacement despite the short notice.

Diaz referred to McGregor's much-publicized movement training as "playing touch-butt with that dork in the park with the ponytail...."

Diaz is coming off a unanimous decision victory over Michael Johnson, whom he defeated on December 19. "Let's see what he's got to say because I'm here for the fight and the cheque", he stressed. Diaz has a black belt in jiu-jitsu and is a better wrestler than McGregor.