'Betrayed' Cain Velasquez tries to explain UFC on FOX knee injury video

With less than two weeks until UFC 155, which takes place at the MGM Grand Garden Arena in Las Vegas, Nevada, on Dec, 29, 2012, never-before-seen training footage of Cain Velasquez mysteriously surfaced, showing the then Heavyweight champion of the word sustaining a significant knee injury.

Mysterious, clearly, because of the circumstances -- Velasquez is currently readying to rematch Junior dos Santos, one year after "Cigano" finished him in the main event of the first-ever UFC on Fox show in just 64 seconds. Even before "Brown Pride" hit the canvas that fateful night in Anaheim, Calif., speculation swirled that he was limping into the championship clash on a bum wheel.

He suited up regardless and never confirmed or denied the injury reports. And when he was wiped out with a quickness, Velasquez never made any excuses or offered up injury-related reasons for his high-profile, first-ever mixed martial arts (MMA) loss.

So, when the aforementioned video, which has since been made "private," conveniently popped up in the promotional push prior to UFC 155, it turned quite a few heads. Among them, it seems, was Velasquez's, who recently revealed how it all went down and how he is none to happy.

"There were a couple of film crews in their filming before the fight," Velasquez told MMAFighting.com. "They've had [the footage] in their possession, so they decided to [release it] before this fight. I have no idea why. It's not cool. Should have let me know first and see if it was okay with me to do that. Makes it seem like I'm crying about what happened before that fight. That's just not me."

As for a possible motive, reporter Ariel Helwani asked if it was possibly done because Velasquez had switched sponsors. One of the Dethrone "Royalty" fighters, Velasquez has since switched sweaters and is now backed by Affliction.

"I'm good friends with the owner of Dethrone still -- we have still done stuff after I signed with Affliction," he said. "I have no idea.... Yeah, [I felt betrayed by the person who did send it out]. And I let him know that."

It's crystal clear now that Velasquez was injured in his first fight with the Brazilian bomber. The severity of that injury is unclear because Velasquez was able to compete six months later at UFC 146 and looked like an absolute savage destroying Antonio Silva. And at this point it probably doesn't matter much because Velasquez made the decision to fight that night and is apparently more than willing to deal with the consequences.

"Never know [if I would have pulled out of the fight if it wasn't a FOX main event]. Being a fighter, you are always confident in what you have and what you have done. So when the opportunity comes you want to go out there and fight."

Velasquez unequivocally confirmed that he is 100 percent healthy for his rematch with dos Santos in "Sin City." But, even if he wasn't, he doesn't seem to be the type to admit it before, during or after the dust settles.