UFC 137 weigh in results LIVE from Las Vegas for 'Penn vs Diaz'

The official weigh in event for UFC 137: "Penn vs. Diaz" took place today (Oct. 28, 2011) LIVE from the Mandalay Bay Events Center in Las Vegas, Nevada.

And the 209 was definitely in the house when Nick Diaz put his head up against B.J. Penn's to ignite a nice little pull apart during the staredown. Get hyped, ladies and sirs.

Everyone made weight without incident save for Tyson Griffin, who came in a whopping three pounds over the 145-pound limit and has one hour to drop the excess baggage. We'll keep you updated on that situation.

Everyone else was good to roll.

UFC 137 will feature former welterweight champion B.J. Penn taking on ex-Strikeforce 170-pound titleholder Nick Diaz. In the co-main event, fast-rising heavyweight prospect Matt Mitrione challenges the hard-hitting Cheick Kongo.

Complete UFC 137 weigh in results after the jump:

Main event:

170 lbs.: B.J. Penn (169) vs. Nick Diaz (170)

Main card (Pay-per-view):

265 lbs.: Cheick Kongo (234) vs. Matt Mitrione (255)
265 lbs.: Roy Nelson (252) vs. Mirko Filipovic (235)
145 lbs.: Hatsu Hioki (145) vs. George Roop (145)
135 lbs.: Jeff Curran (134) vs. Scott Jorgensen (135)

Spike TV "Prelims:"

155 lbs.: Donald Cerrone (156) vs. Dennis Siver (155)
145 lbs.: Tyson Griffin (149)* vs. Bart Palaszewski (146)

Preliminary card (Facebook stream):

205 lbs.: Brandon Vera (205) vs. Eliot Marshall (204)
155 lbs.: Danny Downes (155) vs. Ramsey Nijem (155)
185 lbs.: Chris Camozzi (185) vs. Francis Carmont (185)
185 lbs.: Dustin Jacoby (185) vs. Clifford Starks (186)

*Griffin has one hour to lose three pounds

Remember that MMAmania.com will provide LIVE round-by-round, blow-by-blow coverage of the main card action on fight night (Sat., Oct. 29), which is slated to air at 9 p.m. ET on pay-per-view. The latest quick updates of the live action will begin to flow earlier than that around 6 p.m. ET with the preliminary bouts.

It's going to be a fun night of fights so don't miss it. And remember to check us out for all the pre, during and post-fight UFC 137 coverage you can handle.