McGregor and Mayweather in cahoots?

Rory McIlroy is looking forward to this weekend's fight between Conor McGregor and Floyd Mayweather, but admits he worries they may be laughing together behind the scenes.

McIlroy was asked about the upcoming mega fight at his press conference ahead of the Northern Trust Open, and admitted he fears the trash talking between the two men is all for show.

"I'm interested just to see how it all plays out, but I just fear that they do all this trash-talking and they go behind the scenes and they are having a laugh," he said.

"We are all buying into it and they are like, can you believe these people believe this?

"It's amazing, like we were talking about, imagine McGregor knocks him out in the first couple of rounds.

"I just don't know what that zero on Mayweather's record is worth, and that's the thing. That's his legacy."

Asked if he thought McGregor could beat Mayweather, McIlroy responded in the affirmative.

"Certainly. All I've done is follow the build up to this thing. All I do is watch YouTube videos of Conor McGregor," he said.

"I'm intrigued. He talks a good game. If you just listen to his press conferences and what he says, you would think that this guy, he's the one with the 50-0 boxing record."

McIlroy said McGregor's level of self-belief is a source of admiration for him.

"It's amazing. I'm a big admirer of him. He talks about visualization and the law of attraction and all this stuff that he believes in it and he vocalizes it, and he has the courage to say what he thinks. I'm a believer in that stuff, and I'm a big advocate of that," he said.

"And some of the stuff he does wouldn't be my cup of tea, but he believes 100% in himself and he believes he's going to go out there on Saturday night and shock the world."