Looks like some early money has started to trickle in for the upcoming UFC on FUEL TV 4 main event.

The middleweight mash-up of Mark Munoz vs. Chris Weidman, who slug it out at the HP Pavilion in San Jose for the right to get one step closer to a 185-pound title shot, opened pretty close to even when the odds and betting lines first broke for their July 11 showdown.

No longer.

The undefeated "All American" has taken a short lead as the -150 favorite while "The Filipino Wrecking Machine" trails as the +120 underdog, according to the bourgeois bookies over at Best Fight Odds.

Surprised?

Munoz has won four consecutive fights inside the Octagon, which was good enough to land him in a number one middleweight contender eliminator match against Chael Sonnen at UFC on FOX 2 earlier this year. However, "The Filipino Wrecking Machine" suffered an elbow injury in training and was forced to withdraw from the 185-pound bout.

Michael Bisping was promoted to the co main event in replace of Munoz and went on to lose a surprisingly close decision. The rest is history. However, in an odd twist of fate, Bisping's original UFC on FOX 2 opponent, Demian Maia, was left without on opponent when "The Count" accepted the Sonnen challenge.

Weidman was the man who actually stepped up on short notice; however, in doing so, he was forced to cut 32 pounds in 10 days to make the division limit. He did it, but his performance against the Brazilian jiu-jitsu specialist suffered tremendously as a result.

Nonetheless, Weidman persevered and went on to win a sluggish unanimous decision.

He managed to not only pick up the most important win of his young mixed martial arts (MMA) career, but also keep his perfect professional record intact. In addition, Weidman immediately jumped up the rankings and got himself right in the mix of the middleweight division.

Now, he has the opportunity to take it even one step further in a main event against one of the division's top dogs.

So, now that you've seen the numbers, who's racing over to the betting window to plunk down some hard-earned coin? If you need to do your homework before betting, than I suggest you click here and here.