When Shane Carwin lost to then-UFC Heavyweight Champion Brock Lesnar by second-round Arm Triangle at UFC 116 last July, the MMA world--quick to jump to discussions about dream fights for Carwin against the likes of Cain Velasquez and Junior "Cigano" Dos Santos--was on the verge of becoming accomodated with the Brock Lesnar era and started to question whether or not they would ever get to see Carwin in meaningful fights against Velasquez or Dos Santos for as long as they lived.

Fast forward almost a year later to now, when we as a proud MMA-addicted community are less than a week away from UFC 131, and what fight do we have to call "the main event of the evening" for this Saturday's fight card?

Four months ago, the answer was a Heavyweight bout between Brock Lesnar and Junior Dos Santos, but on May 12th, 2011, multiple Mixed Martial Arts news outlets were able to confirm that the now-former UFC Heavyweight Champion was not only out of the bout, and not only forced to have a full foot of his colon removed, but who has stepped in for Lesnar?

As we would all find out not too much later than when we learned Lesnar was out of UFC 131, it would be none other than the man who had his "0" taken away from him by Lesnar, the Greg Jackson juggernaut himself, Shane Carwin.

It's the Heavyweight main event we thought we'd never see, and it's out main event this Saturday, backed by the continuing "Gold Rush", so to speak, of TUF 1 Middleweight runner-up Kenny Florian, who will make history before former one-time foe Joe Stevenson makes his first forray at 145, as Florian becomes the first man to fight in four different weight divisions.

Whereas Stevenson awaits Javier Vazquez at UFC Live 4: Marquardt vs. Story, Florian's forray-at-145 on this upcoming Saturday night comes against the fast-rising, hard-hitting, well-rounded Muay Thai mutilation machine and Black House Featherweight prospect Diego "The Gun" Nunes, who comes in off of the heels of a big UFC 125 victory over former WEC Featherweight Champion Mike Brown.

Also, Demian Maia walks inyo UFC 131 with only glaring defeats to Nate Marquardt and Anderson Silva on his otherwise blooming-bright professional record, and he looks to step in front of Silva once more, provided of two things, one of which is that Silva avenges his Rumble on The Rock 8 loss by disqualification to Yushin Okami when the two collide with Silva's Middleweight throne in the balance at UFC 134 later this summer.

The other "must" before Maia focuses on a potentially-exciting rematch of what is still one of the most abominable MMA title bouts in the sport's history is for him to soundly make rapid work of well-known Black House affiliate and Reign MMA standout Mark Munoz, who is looking to capitalize on the success he garnered against CB Dollaway at the most recent UFC Live event.

From top to bottom, the overall fight card is stacked with a littl ebit of something for every MMA fan's insatiable appetite, but what's going to happen this Saturday when UFC 131 is all said and done?

On behalf of myself, I present to you the answer to that daring question.

In my own poetic manner, I present to you ten truths of what to expect to go down at UFC 131!