UFC 137 has had its changes, but one thing remains intact—a great night of fights featuring a main event between two of the sport's most exciting fighters in B.J. Penn and Nick Diaz.
Both are former champions and promise to deliver a quality fight, which recently replaced the original main event between Georges St-Pierre and Carlos Condit.
Other pay-per-view bouts include Hatsu Hioki vs.George Roop, Matt Mitrione vs. Cheick Kongo, Mirko Cro Cop vs. Roy Nelson and Scott Jorgensen vs. Jeff Curran.
Spike TV bouts begin at 8 p.m. ET and will feature a lightweight bout between Dennis Siver and Donald Cerrone, as well as a featherweight matchup with Tyson Griffin and Bart Palaszewski.
Preliminary bouts can be watched on Facebook. They include Dustin Jacoby vs. Clifford Starks, Chris Camozzi vs. Francis Carmont, Ramsey Nijem vs. Danny Downes and Brandon Vera vs. Eliot Marshall.
These are predictions for every fight.