Jake Shields will fight for the MMA World Series of Fighting welterweight belt on Saturday, against a man he has called “a dirty sociopath” in the past.

That would be WSOF 170 lb titlist Rousimar “Toquinho” Palhares, who has had been the center of controversy for not releasing his signature leglocks even after an opponent taps.

Shields not only can’t wait to fight Palhares, who calls “the best in the world at leglocks” — he says he’d like to give Palhares a taste of his own medicine.

“It makes you want to go out there, and not feel bad about trying to hurt him,” Shields said on Parting Shot Podcast this week. “He’s trying to cause an injury and hurt you; he’s not just trying to win the fight — he’s trying to inflict pain. So you’re going to take the fight really serious. I’ve trained my leglocks and I’m ready to go out there and kick his ass. Ideally, it’d be nice to go out there and pop one of his knees!”

Asked to specify if he’d crank a submission on Palhares — and not let up even after a tap or two — Shields said there’s no need to worry.

“I’m definitely going to crank it as hard as I can,” he said. “I definitely don’t want to get in trouble with the commission for holding on too long, but if I get something I’m going to try to break it.”

Shields expressed his contentment fighting for WSOF, whose welterweight division also includes Jon Fitch and Yushin Okami, but said he wouldn’t rule out an offer from the UFC or Bellator in the future.