Jake Shields is an honorary Diaz brother and Saturday he broke out the Stockton Slap.

The former Strikeforce champion and current WSOF fighter slapped opponent A.J. Agazarm after their grappling match Saturday at Polaris in Wales. Agazarm went to shake Shields' hand and Shields refused. Agazarm pushed Shields with one hand and Shields responded with a slap. The two men had to be separated.

There was a ton of trash talk between the two men leading into the match. Shields accused Agazarm, a former Ohio State wrestler, of gouging his eyes during the bout. The match ended in a draw, though Shields dominated. Polaris is a submission-only event.

"This guy was talking crap the whole time, gouging my eyes," Shields said. I just had my eye gouged for the first time in my life my last fight and now you got this prick doing the same thing. He was bragging yesterday, 'I'm gonna try and make it a draw, I'm gonna try to make it a draw. I know I can't beat you, but if I can make it a draw I'm gonna consider that a win.' Well, congratulations A.J. You're a bitch. How does it feel to be a pussy and get your draw?"

Jake didnt have nice words to say #Polaris3 pic.twitter.com/2L5HPxtTjn — ZombieProphet (@ZProphet_MMA) April 2, 2016

Shields, 37, is coming off a loss to Rousimar Palhares at WSOF 22 last August. Palhares gouged Shields' eyes multiple times in that fight and also held onto a kimura finish too long after the referee stepped in to stop it. Palhares was suspended two years by the Nevada Athletic Commission.

Coincidentally, Palhares also competes Saturday as he ended up in a draw against Garry Tonon.

Shields has been an MMA champion in Strikeforce, Shooto and Elite XC. He fought for the UFC welterweight title against Georges St-Pierre in 2011. He is a black belt in Brazilian jiu-jitsu under Cesar Gracie and longtime training partner of Nick and Nate Diaz.