Conor McGregor would knockout Floyd Mayweather: 'It's like playing with a baby'

How long would it take Ultimate Fighting Championship (UFC) interim featherweight champion Conor McGregor to knockout undefeated boxing kingpin Floyd Mayweather Jr.?

Depends.

While "Notorious" conceded defeat in the "sweet science," he also believes a "real fight" -- which I assume means mixed martial arts (MMA) or a (gulp) street fight -- would be over in mere seconds.

From his conversation with The Guardian.

"In a real fight, I would dismantle him in seconds. Ronda [Rousey] would dismantle him in seconds, 100 percent. When you don't know how to grapple, you don't stand a chance. For us, it's like playing with a baby. People who don't understand the sport cannot understand how vulnerable they are. There are always clinches and Ronda is a judo Olympian. She would throw Floyd on his head in a second. Me? I would knock him out. Cold. Why would he take me on? But if you're talking about a fight that could generate half a billion, it's this one. There's never going to be another boxing fight like this. Only a cross-style match between Mayweather and me could generate that kind of interest and revenue. So maybe it could happen. I would certainly be up for it. I am capitalizing on every single opportunity. It's a strong word, one of my favorite words: capitalize. I'm ready to capitalize on everything."

It's LeBell vs. Savage all over again!

Unfortunately those billions will have to be put on hold, as Mayweather is tasked with defending his title against Andre Berto next month in Las Vegas, Nevada (details), while McGregor has his own strap to worry about when it gets unified with the one Jose Aldo is carrying around in Brazil.

For more on that upcoming fight click here.