With days to go before his showdown with Floyd Mayweather, Conor McGregor is confident as ever… or is acting that way at least.

In an interview with ESPN this week, the UFC star tells Hannah Storm that he may just knockout the boxing legend… in just 10 seconds.

When asked if he’s prepared to go the distance, McGregor said of course… but said he may just finish him quick.

“I have finished many fights early because I have prepared for the full distance. This is no different,” McGregor said. “I am prepared to go the full 12 rounds with this man. But, I’m also prepareed to knock him out in 10 seconds. It would not surprise me if that happens. It wouldn’t be the first time.”

Will it happen? Mayweather-McGregor face off on Saturday (Aug. 26) in Las Vegas.