UFC 137 weigh in results, information and details for 'St. Pierre vs Condit' on Oct. 28 in Las Vegas

The official weigh in event for UFC 137: "St. Pierre vs. Condit" is set to take place at the Mandalay Bay Events Center in Las Vegas, Nevada, on Fri., Oct. 28, 2011.

As usual, MMAmania.com will provide up-to-the-second coverage of the UFC 137 weigh-ins, as well as provide a detailed recap of the festivities as soon as they conclude.

The first fighter is expected to tip the scale at 4 p.m. ET.

UFC 137 will feature welterweight champion Georges St. Pierre putting his title on the line when he goes head on against division number one contender Carlos Condit. The co main event will highlight the recently demoted Nick Diaz taking on B.J. Penn.

Here is the current UFC 137 fight card and line-up:

Main event:

170 lbs.: Georges St. Pierre vs. Carlos Condit

Main card (Pay-per-view):

170 lbs.: B.J. Penn vs. Nick Diaz
265 lbs.: Roy Nelson vs. Mirko Filipovic
265 lbs.: Cheick Kongo vs. Matt Mitrione
145 lbs.: Hatsu Hioki vs. George Roop

Preliminary card (Spike TV):

155 lbs.: Donald Cerrone vs. Dennis Siver
145 lbs.: Tyson Griffin vs. Bart Palaszewski

Preliminary card (May not be broadcast):

155 lbs.: Danny Downes vs. Ramsey Nijem
205 lbs.: Brandon Vera vs. Eliot Marshall
185 lbs.: Chris Camozzi vs. Francis Carmont
135 lbs.: Jeff Curran vs. Scott Jorgensen

For those fortunate enough to be in "Sin City" that weekend, remember the weigh-in is FREE to attend and open to the public. Doors to the weigh-in will open at 1 p.m. PT. In addition, UFC Fight Club members will be able to attend a special Q&A session with former heavyweight champion Frank Mir at 2 p.m. local time.

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.