Jon Jones has been ruled out of UFC 200 because of PED violations.

Jones was ruled out of the competition, and his headlining rematch against Daniel Cormier, on Wednesday because his A sample was reported as testing for a potential violation found by USADA testing.

“They found something in one of my samples,” said Jones on Thursday. “I don’t even know how to pronounce it. I’ve been taking the same supplements the majority of my career. I’ve been so outspoken about being against any type of performance enhancers. To this day, I’m extremely against performance enhancers. The whole thing sucks. Being labeled as someone who would cheat hurts more than anything else I’ve ever been through in my career.”

The substance for which Jones is being accused of using has not been announced. He appealed by requesting his B sample be tested in front of him.

“The B sample that was requested has confirmed the findings of the A sample,” announced USADA spokesperson, Ryan Madden.

Jones tested positive for cocaine before his first fight against Cormier in 2015. With a second offense, Jones could possibly be facing a two year suspension.

“If I do have to sit out two years, I will definitely be back,” said Jones. “I’m already thinking about the good that can happen. I’m optimistic. But man, at the end of the day, I’m a fighter. I’m a fighter. Even though I may seem broken up here, I’m not broken. I’m just really upset.”