Jake Shields and Mike Jackson get into a physical altercation at UFC PI over social media insults; Both threaten legal action

The bad blood online has spilled over into the real lives of two UFC veterans.

Former Strikeforce Champion Jake Shields posted a video to Twitter on Friday A physical altercation appears between him and UFC veteran Mike Jackson, held at the UFC Performance Institute in Las Vegas. Shields and Jackson feuded widely on social media over a variety of issues such as race, politics, and more.

“Finally encountering Mike Jackson,” Shields wrote on Twitter. “Quickly figure out the difference between calling people Nazis in person vs. on Twitter. This racist is lucky because so many people were there to save his pathetic racist ass.”

In the video, which can be seen below, Shields is shown controlling Jackson from the side control and then pinning position while several bystanders stand around watching the pair. Shields says to Jackson in the clip, “You little bitch, you said you’d do it.” Shields then appears to take a higher mount stance and throw jabs at Jackson before the clip ends.

In a follow-up tweet, Shields invited Jackson to the Extreme Couture gym for a rematch and explained, “They pulled me away. [Jackson] Because he was begging for mercy.”

After the incident, Jackson and Shields continued to attack each other on Twitter, with Shields repeatedly calling out Jackson for appearances to Xtreme Couture and Jackson noting that he had left the former Strikeforce champ with a bloody eye.

Jackson told MMA Fighting member Stephen Marocco on Friday that he plans to press charges against Shields over the incident.

Shields told MMA Fighting that he spoke to a lawyer who said he had solid ground for a defamation lawsuit against Jackson for his nazidom-related accusations.

Jackson, 37, split his four UFC appearances, racking up victories over CM Punk (which was later revoked to a no contest due to a positive marijuana test) and Dean Barry between first round losses by suspensions to Mickey Gall and Pete Rodriguez.

Shields, 43, retired from MMA in 2018 after losing a first-round knockout to Ray Cooper III in the PFL Playoffs. The veteran wrestler racked up notable wins over Dan Henderson, Tyrone Woodley, Demian Maia, Carlos Condit, Robbie Lawler, Paul Daley, and more.