UFC light heavyweight champ Daniel Cormier has spent a lot of time with Jon Jones – in the cage, outside it and in his mind.

For some people, that might mean he knows the interim champ, his onetime opponent and fierce rival. It might mean he’s a qualified judge of Jones’ character and that his opinions have more weight.

But Cormier, No. 2 in the USA TODAY Sports/MMAjunkie MMA light-heavyweight rankings, is no more sure of who No. 1 Jones is now than when the two first bumped shoulders six years ago, starting a feud that will bring them back into the octagon together on Saturday at UFC 200.

“I’ll give you my best answer,” Cormier told MMAjunkie. “It’s very easy to say I don’t know, because I don’t know if he’s the Christian. I don’t know if he’s the addict. I don’t know if he’s the recovered addict. I don’t know if he’s a family man. I don’t know who he is, because he will not allow people to know who he is.”

The good thing about Cormier’s job is that he doesn’t need to know. The only knowledge that truly matters is the way Jones goes about fighting, which already provided an unsolvable problem in their first meeting at UFC 182.

Cormier (17-1 MMA, 6-1 UFC) gets a chance to use what he knows from that fight and Jones’ (22-1 MMA, 16-1 UFC) previous appearance, an interim title winner over Ovince Saint Preux at UFC 197, to avenge his loss when they meet in UFC 200’s pay-per-view headliner at Las Vegas’ T-Mobile Arena.

It won’t be the final word on the rivalry, of course. Jones and Cormier already have proven they will never rest on an even keel. But this time around, Cormier said, he isn’t trying to meld Jones’ personal life with his competitive goals. He isn’t trying to right all of the wrongs that have followed the interim champ outside the cage.

“I wanted to punish him for doing the bad things, when it’s not my job to punish him for all of his crimes against humanity,” Cormier said. “I don’t care. Now, I’m going to compete. I’ve let all that go.”

Will that shift lead to a better performance for Cormier against Jones? The answer comes Saturday when the two step into the cage at the blockbuster event. Check out the above video to get champ Cormier’s thoughts on his rival.

For more on UFC 200, check out the UFC Rumors section of the site.