Conor McGregor said he would finish Dustin Poirier in the first round of his UFC 178 fight Saturday night.

And that is exactly what “Notorious” did, ending it early.

Following the quick finish, McGregor calmly walked away, putting his finger to his mouth to “silence” the crowd, which was a pro-Irish backing. The win was the fourth straight inside the Octagon for McGregor, who confirmed reports that he suffered a thumb injury in training.

“I don’t just knock (people) out, I pick the round,” he said. “I felt really good. I tore ligaments in my thumb four weeks ago and that disrupted my training, but I wanted to put on a performance.”

McGregor (16-2) has now finished three of his four UFC opponents and made it known he wants the world title next, saying he would be ready to fly to Brazil and fight Jose Aldo for the belt. Aldo is set to meet Chad Mendes next month.

“These featherweights don’t understand,” McGregor said. “When they get hit by me, it is a whole other ballgame.”

The loss was just the fourth of Poirier’s career, dropping him to 16-4. He protested the stoppage, claiming one of the shots landed was to the back of the head.