Dec 29, 2012; Las Vegas, NV, USA; General view of the octagon before the fight between Junior Dos Santos and Cain Velasquez at UFC 155 at the MGM Grand Garden Arena. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

The fighters on the UFC 167 card weighed in today at a live event. There was an interesting moment when Will Campuzano and Sergio Pettis were weighing in. The fighters strip down to their underwear for the weigh in to get an accurate weight measurement. That leaves the guys standing in their briefs or boxers, which is revealing to say the least.

When the two fighters approached one another for their stare down picture, Campuzano looked particularly aroused. That is right, it looks like he is standing there with an erection in front of a whole arena full of people, not to mention the others watching at home.

Some fighters put their clothes back on, or their pants at least before taking the picture, like Georges St-Pierre did. I bet Campuzano will do that from now on. There could be something behind him, or something that is creating an optical illusion. But for now it looks like Campuzano was aroused. In his defense the ring girls were standing there on stage. Still, that should make for an interesting fight.

Let us know in the comments what you think.

Sergio Pettis is an exciting fighter. RT @MattRoth512 WHY DOES THIS FIGHTER HAVE AN ERECTION? WHY?! pic.twitter.com/fYAu3MRrV2 — Chuck Mindenhall (@ChuckMindenhall) November 16, 2013

Just cause this is funny:

Will Campuzano could own every UFC record ever and end up being worth 100 million and he’d still be most known as “weigh in boner guy”. — Action Donson (@AkihiroDono) November 16, 2013

All the fighters weighed in on Friday and here are the results for the entire UFC 167 card from top to bottom:

MAIN CARD (PPV, 10 p.m. ET)

Georges St-Pierre (170 lbs) vs. Johny Hendricks (170 lbs) – for UFC Welterweight Title

Rashad Evans (205 lbs) vs. Chael Sonnen (206 lbs)

Robbie Lawler (170 lbs) vs. Rory MacDonald (171 lbs)

Josh Koscheck (170 lbs) vs. Tyron Woodley (171 lbs)

Ali Bagautinov (126 lbs) vs. Timothy Elliott (125 lbs)

PRELIMINARY CARD (FOX Sports 1, 8 p.m. ET)

Donald Cerrone (155 lbs) vs. Evan Dunham (156 lbs)

Ed Herman (186 lbs) vs. Thales Leites (186 lbs)

Brian Ebersole (171 lbs) vs. Rick Story (170 lbs)

Edwin Figueroa (135 lbs) vs. Erik Perez (135 lbs)

PRELIMINARY CARD (Facebook, 6:45 p.m. ET)

Jason High (170 lbs) vs. Anthony Lapsley (170 lbs)

Will Campuzano (135 lbs) vs. Sergio Pettis (135 lbs)

Cody Donovan (205 lbs) vs. Gian Villante (205 lbs)