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Conor McGregor's welterweight debut should end like most of his featherweight fights: a resounding victory.

The reigning featherweight champion will move up in weight for Saturday's welterweight bout against Nate Diaz at UFC 196 in Las Vegas.

Anything less than a KO for McGregor would be a surprise.

McGregor has never lost in the UFC and won his last two title defenses, including a stunning 13-second knockout of Jose Aldo that required a single powerful punch.

It probably will take more than that to knockout Diaz, but it shouldn't take too long. McGregor's agility and ability to rattle off devastating combos in such a quick fashion should overwhelm Diaz.

McGregor also has a better strike percentage than Diaz, 45 percent to 43 percent, as well as a much better grappling percentage, 83 percent to 31 percent.

Diaz also has lost three of his last five fights, and he's fought only once since Dec. 13, 2014. McGregor has fought three times in that span, so rust won't be an issue for the Irishman.

McGregor also has a slight aura of invincibility around him. He's been so dominant in the UFC, and after destroying Aldo so quickly at UFC 194, his confidence is at an all-time high. He's going to come out on the attack, and how Diaz weathers this early storm will determine how long he stays in the fight.

Seventeen of McGregor's 19 career wins have been settled via knockout. Expect a similar outcome in fight No. 20.

Thumbnail photo via Gary A. Vasquez/USA TODAY Sports Images