Unconvinced that Tommy Morrison is HIV-positive, 35-year-old John Stover of Pine Ridge, South Dakota has decided to step into the cage tonight at Cliff Castle Casino in Camp Verde, Ariz. against the former boxing heavyweight champion.

Stover confirmed to Sherdog.com Saturday afternoon that he would fight in the "glorified kickboxing" match despite a report Friday evening by the Arizona Republic that cited allegations from Morrison's former agent, Randy Lang, that the boxer had tested positive for HIV antibodies.

"Nobody has been able to come up with any type of proof that he's got HIV," said Stover, who hangs sheet rock for a living when he isn't fighting. "So I don't know what else to say."

In 1996 the Nevada State Athletic Commission revealed Morrison had contracted the HIV virus, which is known to cause AIDS. The news drove Morrison from boxing for 11 years before the 38-year-old Oklahoman returned to the ring in West Virginia this February.

In the newspaper report, Lang alleged that documentation supplied to West Virginia regarding Morrison's blood work was either fraudulent or that samples had been switched.

Lang said he stopped acting as Morrison's agent three days after the boxer's comeback fight because both the boxer and his promoter, Peter McKinn, misrepresented information regarding the test taken in Phoenix, Ariz.

McKinn, promoter of tonight's unregulated Worldwide Fighting Championship mixed martial arts card on the Yavapai-Apache Nation, told the Republic that he was never in West Virginia during Morrison's licensing process and that all documents supplied to the commission came from Lang.

"I am negative and that's that," Morrison told ESPN.com on Friday. "I will go to Vegas and have a test and have a press conference and it will be over. I'll do that in about two weeks to a month."

Standing six-foot-two and tipping the scales at 340 pounds, Stover said his is a brawling style, which can result in bloody fights.

"Seven years ago I watched my brother [fight MMA] quite a bit," he said. "He was pretty good. He was a wrestler and I had a wrestling background so I thought I'd try it. Born and raised in a fighting environment, from where I come from, is a pretty tough place. Born and raised to fight. I was good at it so I decided to keep doing it."

When asked if he felt safe stepping into the cage with Morrison, Stover admitted there were misgivings, though in the end a lack of evidence prompted him to stay in the fight.

"I see everybody is talking about how he's HIV positive, but they don't come up with any proof whatsoever," he said. "I don't see any kind of paperwork on it, but everybody has the paperwork that says he's not. So what direction should I go there? It just doesn't make any sense."

Stover said that WFC promoters showed him documentation on Friday that Morrison tested HIV-negative several times in recent years.

While he declined to disclose his purse for the fight, Stover quipped it wasn't "nearly enough for half the stuff I'm going through."

Regarding the bout's rules, which prohibit any kind of ground fighting, Stover said Morrison doesn't understand what it means to be a legitimate mixed martial artist.

"Basically he wants to get in the ring, swing 4-ounce gloves, get his name back out there and earn a couple bucks doing it," said Stover. "I don't think he has any idea what real MMA is and when he figures it out, he's going to realize it's a way of life and he's going to have to change it."

The heavyweight fight joins nine other bouts on a card scheduled to begin at 7:30 p.m. local time.

"I'm just going to walk out and hit him on the chin," Morrison said at a news conference on Thursday. "I'm concerned about killing someone. I'm not kidding."