We knew he was disgruntled, but yesterday New Zealand-based slugger Mark Hunt showed just how mad he is at his employers.

Hunt has filed a civil suit against the UFC. This all stems from them playing fast and loose with the USADA rules and allowing a juiced-up Brock Lesnar to fight him, and the nitty-gritty of the suit involves accusing words like “conspiracy” and “racketeering”.

Here’s ESPN with the scoop:

Heavyweight Mark Hunt has filed a civil suit against the UFC, its president Dana White, and Hunt’s former opponent and WWE star Brock Lesnar.

The suit, which was filed in Nevada District Court on Tuesday, alleges the defendants “affirmatively circumvented and obstructed fair competition for their own benefit.” It accuses the parties of racketeering, which carries the potential weight of treble damages, and fraud, among other allegations. Hunt is seeking financial relief for damages, both physical and to his overall brand.

The case stems from a heavyweight bout between Hunt and Lesnar, which served as the UFC 200 co-main event July 9 in Las Vegas.

Hunt, 42, has been publicly upset ever since it was revealed Lesnar failed multiple drug tests surrounding the event. He has advocated harsher penalties for doping violations and demanded a clause in future fight contracts that would fine an opponent his entire purse in the event of a failed test.

“I want the UFC to understand it’s not OK to keep doing what they’re doing,” Hunt told ESPN.com. “They’re allowing guys to do this. They had a chance to take all the money from this guy, because he’s a cheater, and they didn’t.

“What message is that sending to the boys and girls who want to be a fighter someday? The message is, ‘You just have to cheat like this and it’s OK.’ In society, if you commit a crime, you pay. Why is it different in MMA? It’s hurt the business, so it’s even worse. They need to be held accountable for this.”