Derek Moneyberg, real name Dale Buczkowski, bills himself as a “Mentor For Investing, Real-Estate & Business” on his Instagram profile and offers a “wealth foundations course” titled “The Ten Commandments of Wealth” on his official website.

What’s that got to do with combat sports?

Strickland accused Moneyberg of predatory “financial scams.”

“This man takes advantage of low-paid UFC fighters, who are great men who are just trying to make their mortgage and live a life,” Strickland said in a recent social media video. “He takes advantage of these men and he uses their platform to peddle financial scams and he sues people. And what he does is so dishonest and so scummy. You are a fraud. You are dishonest. You fraud people. This is why you don’t want to be on camera because you know everything I say is true.”

Here’s the isolated clip:

Moneyberg later told Ariel Helwani that he’s filing a lawsuit against Strickland for “new” and “repeat” lies.

“I’m suing him,” Moneyberg said. “I’ll let my attorneys deal with that, but it looks like I’m going to have to sue him. He’s said a lot of very nasty things that are false, that hurt my reputation and hurt my brand, and I don’t like that. I asked him to his face before this if he’d like to do [a grappling] match, and then he continued to say more false things, repeat lies and create new lies. I wish it wasn’t that way. I respect him. I think he’s a very talented fighter, and I have very good relationships with many other people around him. So I don’t know why he made that decision, but that’s the decision he’s made.”

“Sean’s been served legal papers, and I don’t need to go into all the details of it in a public thing,” Moneyberg told Cageside Press in a follow-up interview. “He hasn’t reached out. If you really believe the sh*t that you’re saying, we’ll do a public match together. If my black belt is bullsh*t, it should be easy for him to tap me in five minutes, wouldn’t it? He’s never said ‘yes’ to that. He says, ‘sign the waiver and come through.’ He’s challenging me to an MMA fight at his gym. That wasn’t my intention. I wasn’t challenging him to a fight. I was inviting him to come see me. I said, respectfully, come to the gym tonight.”