LAS VEGAS -- Dustin Poirier wasn't happy with Diego Brandao for missing weight by a whopping seven pounds Friday for their planned featherweight fight at UFC 168 on Saturday night.

But he was really steamed by what Brandao had to say to him on the way out to the weigh-ins.

"Actually, on stage I was so mad because before we walked on stage to weigh-ins he told me he was going to stab me in the neck, actually," said Poirier. "And they had to separate us. Yeah, he was that nuts man. That's why I was so upset."

Still, the weigh-in fiasco provided plenty of motivation as well.

"I really work hard to stay in great shape and make weight," Poirier said. "I take this very serious, so that showed me if he's slacking where else is he slacking? So I was already confident in the fight. I felt like the best Diego could have showed up and I'd still have won."

Poirier took care of business in the Octagon on Saturday, as finished Brandao via TKO late in the first round after the latter noticeably gassed midway through the round.

With three wins in his past four fights, the Louisiana native, who now trains with the American Top Team, has clearly pushed through a slump in which he lost to Cub Swanson and Chan Sung Jung.

Poirier indicated that a Swanson rematch is the fight he wants.

"Korean Zombie beat me, but my other loss was to Cub Swanson. I took the fight on short notice and cut 30 pounds in a week, flew to London, and never felt the feeling I had that night ever before in my life. ... I want a rematch with Cub Swanson, I think I deserve to be 100 percent and fight."