Belfort and Johnson square off at UFC 142 weigh in (Getty)

The debate has raged all day - how will Anthony Johnson's weight snafu affect his fight against Vitor Belfort? The pulse in the betting world is that Johnson is in big trouble at UFC 142 in Rio de Janeiro.

[Don't miss the action: Watch UFC 142 live on Y! Sports]

Belfort's number has jumped 40 cents since it was announced Johnson couldn't make the 186-pound weight limit at middleweight. He actually stepped on the scales yesterday in Rio de Janeiro at 197 pounds. A stipulation was also put in place that Johnson couldn't replenish his body beyond 205 pounds for another weigh-in earlier today.

If you liked Aldo early in the week at minus-220, you missed your chance. There's been heavy fight day steam on Aldo pushing him to minus-275.

Listen to Yahoo! Sports Kevin Iole, Adam Hill from the Las Vegas-Review Journal give out picks for the top fights on the card during last night's "MMA Insiders" show on ESPN1100/98.9 FM in Las Vegas.

UFC 142 betting odds:
Best plays in bold

Chad Mendes (+225) vs. Jose Aldo (-275)

Dana White's latest vlog does a nice a job of showing behind-the-scenes coverage of how the Anthony Johnson weigh-in miss went down.

Vitor Belfort arrives at the arena (2:45 mark) and is blown away by the fact that Johnson wasn't going to make weight. He explains that his cut was tough. As he thinks about what to do, Belfort begins to intensely chew on a towel full of ice to get a little water into his system.

White gives him the option of not making weight either, but then he wouldn't get 20 percent of Johnson's purse. His nutrition coach Mike Dolce is brought into help make a decision and says Vitor is going to be professional and do his part.

Later in the video, Johnson is informed on stage that he has to weigh in again on Saturday and be under 205 pounds. The exchange between White and the fighter is cordial.

UFC 142 pre-show Fight Day Live is back this afternoon. Host Dave Farra and Megan Olivi will guide you through the full fight card and all of the biggest news in the UFC.

[Don't miss the action: Watch UFC 142 live on Y! Sports]

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Johnson's weighs 197, but still looks fit (Getty)

What the heck just happened? Insert some stronger language and that had to be Dana White's initial reaction to Anthony Johnson's huge gaffe at the UFC 142 weigh-in.

Johnson, a massive 170-pounder, took this fight at 185 pounds months ago. Thought by some to be the smaller fighter against Vitor Belfort, Johnson clocked in at a shocking 197 pounds! The backstory was that Johnson got as low as 187.5 and doctors told him to stop.

UPDATE: Here's the medical explanation why Johnson stopped cutting weight at 187.5 pounds.

[Don't miss the action: Watch UFC 142 live on Y! Sports]

White was alerted to the issue earlier in the day and announced right around 4 p.m. ET that Johnson wasn't going to make weight.

"Rumble Johnson is not on weight today. And when I say he's not on weight he's way off weight," White said on FX.

White rightly flips out when fighters miss weight by three or four pounds. This was 11 pounds (186 is allowable middleweight limit)!

"As a fighter, you are a professional. You are contracted to come in at a certain weight. This is not the first time this has happened with Johnson. He moved up to 185 pounds so this wouldn't happen to him at 170 pounds, and here we are in the same position again. [Belfort] came in like a professional on weight, and Anthony Johnson comes in as a total unprofessional, way overweight."

The next step to officially making the fight tomorrow is also mind-blowing. Fighters like to rehydrate and replenish their body after the weigh-in. Johnson has to watch his intake. If he balloons higher than 205, Belfort said he won't take the fight.

"The stipulation is, Vitor does not want him to weigh more than 205 pounds by tomorrow at like 2 o'clock in the afternoon," White said. "So we'll see how this thing plays out. He'll weigh in today and have to weigh in tomorrow."

Johnson was making his debut at middleweight after waging his previous 10 UFC fights down at welterweight. The 27-year-old will be fine 20 percent of his show purse. If he loses badly, he may have to worry about a pink slip arriving soon from the promotion. Let's hope there was some legitimate excuse that can excuse Johnson's big mistake.

UFC 142 weigh-in (Courtesy MMAjunkie):

MAIN CARD (Pay-per-view)
Jose Aldo (145) vs. Chad Mendes (144)
Vitor Belfort (186) vs. Anthony Johnson (197)

Mike Pyle has fought all over the world, but even he admits tomorrow night at UFC 142, Rio de Janeiro could be unlike anything he's ever seen.

"We're fighting and we have to fight other countryman on their soil. That makes it fun. Get out there in some hostile territory," Pyle told ESPN1100/98.9 FM. "It's kind of different. You don't get booed and looked at in strange ways at home. It's cool. Makes me feel like a super villain."

Pyle won't be walking through the Rio crowd with complete unfamiliarity. He cornerd Forrest Griffin back at UFC 134 and saw how intense the Brazilians were that night.

UFC142Heavy

UFC 142 pre-show Fight Day Live is back on Saturday, January 14, at 6pm ET/ 3pm PT. Hosts Dave Farra and Megan Olivi will guide you through the full fight card and all of the biggest news in the UFC.

HeavyMMA Editor Matt Brown will host an expert roundtable that will analyze and break down the entire night's fighting action. UFC heavyweight Frank Mir will be live on set for a one-on-one interview as well as an inside look into Anthony Johnson's training camp.

Gina Carano's new film is due to hit theatres on Jan. 20. But before it hits the big screen, there's a little controversy over whether Carano's voice has been changed in the movie.

Check out this Hulu exclusive with the first five minutes of "Haywire" and see what you think.

Below is a conversation we had with her back in 2009. Clearly, she sounds different?  Will it take away from your enjoyment of the film? Obviously, non-MMA fans will have zero idea Carano's voice has been changed.

Johnson and Belfort face to face at UFC 142 press conference (Getty)

A 15-pound jump is huge in the fight world, unless you're a guy who walks around 40 pounds heavier than your weight class.

This weekend at UFC 142 in Rio de Janeiro, Anthony Johnson is moving from 170 pounds to middleweight against veteran Vitor Belfort.

Belfort is no small 185 pounder. He spent most of his career at light heavyweight before the drop down. Watching the UFC 142 prefight conference today and judging by some photos it was hard to tell if Johnson is making a mistake from a size standpoint.

George Garcia from MMAjunkie radio thought Johnson looked undersized.

Looking at the photo above, he might be right, but then in the photo below Johnson looks like the bigger fighter.

Johnson and Belfort side by side at UFC 142 press conference (Getty)

In the end, it probably won't matter unless the fight features plenty of clinch work. Johnson says Belfort won't be able to handle his onslaught on the feet.