McGregor: My confidence comes from 'my big ball sack'

Apparently, all it takes to hit like Conor McGregor is a little testicular fortitude.

In an interview with GQ's Zach Baron published Wednesday, the UFC lightweight champion revealed the secret behind the punching power that has made him the most famous MMA fighter in the world.

"No one's work is clean like my work. My shots are clean. My shots are precise," McGregor said. "Look at Nate (Diaz). Nate was 200 pounds. When I hit him down, it was exactly like if a sniper took aim at someone in between their eyeballs and let the thing rip. The way he dropped, it was like a sack of shit. So that's a power I have."

Asked to explain how that power worked, McGregor gave a bawdy response.

"It's all in the nutsack," McGregor said. "It's all in the ball sack. I just have confidence that comes from my big ball sack, and I know when I smack you, you're going down. And that's it."

McGregor has finished seven of his 10 UFC fights by knockout, so maybe he does owe a debt to an unconventional physical gift.