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UFC 158: St-Pierre vs. Diaz is an upcoming mixed martial arts event to be held by the Ultimate Fighting Championship on March 16, 2013 at the Bell Centre in Montreal,Quebec,Canada.


Official fight card

Main Card

Welterweight Georges St-Pierre (c) vs. Nick Diaz For the Welterweight Championship.
Welterweight Carlos Condit vs. Johny Hendricks
Welterweight Jake Ellenberger vs. Nate Marquardt
Middleweight Chris Camozzi vs. Nick Ring
Lightweight Mike Ricci vs. Colin Fletcher

Preliminary Card (FX)

Welterweight Patrick Côté vs. Bobby Voelker
Featherweight Antonio Carvalho vs. Darren Elkins
Welterweight Dan Miller vs. Jordan Mein
Lightweight John Makdessi vs. Daron Cruickshank

Preliminary Card (Facebook)

Welterweight Rick Story vs. Quinn Mulhern
Bantamweight T.J. Dillashaw vs. Issei Tamura
Bantamweight George Roop vs. Reuben Duran


Background

The main event is the culmination of the rivalry between Georges St-Pierre and Nick Diaz, with the latter having been vocal in wanting to fight the current champion for nearly two years. However, what at one time was perceived by many to potentially be one of MMA's biggest super-fights, the bout has now been viewed by many MMA observers as simply a tune-up on the way to a bigger fight for St-Pierre after Diaz's loss in his last bout to Carlos Condit at UFC 143.

A rematch between Alessio Sakara and Patrick Côté, from UFC 154, was briefly linked to this event. However, Sakara was forced out of the bout due to renal stress.

Sean Pierson was expected to face Rick Story at the event. However, Pierson pulled out of the bout citing an injury and was replaced by Quinn Mulhern.

Rory MacDonald was originally scheduled to face Carlos Condit in a rematch. However, on February 18, it was announced that MacDonald pulled out of the bout citing a neck injury. Condit will now face Johny Hendricks who was pulled from his bout with Jake Ellenberger. Ellenberger will now face returning veteran Nate Marquardt.

Mitch Gagnon was expected to face Issei Tamura at the event. However, Gagnon was forced out of the bout with an injury and was replaced by T.J. Dillashaw.

Johnny Eduardo was expected to face Yves Jabouin at the event. However, on March 6, Eduardo was forced to pull out of the bout citing a shoulder injury.[13] Jabouin was then pulled from the card as a suitable replacement could not be found on short notice.



dec 18 - updated fightcard & background
feb 5 - updated fightcard & background
feb 19 - updated fightcard & background
Mar 04 - updated background
Mar 08 - updated fightcard & background

I love the poster!! the 170 division is getting as crazy as 155 nowadays

As long as the UFC injury curse doesn't wreck the event, this should be a fantastic card.

feb 5 - updated fightcard & background

Feb 21 - updated fightcard

Mar 04 - updated background

i want Diaz win!! but my mind says GSP will win either by decision 50-45 or by doctor stoppage(easy to cut diaz face by elbow!his face is not like Anderson). i really want to see a new WW champion!

I hope Diaz wins. I can't stand fake GSP and his lay'n'pray ways. It's going to be hard though, GSP is the most amazing blanket in MMA.

Mar 08 - updated fightcard & background

GSP all the way