Former light heavyweight champions Chuck Liddell (Pictures) and Wanderlei Silva (Pictures) stood nose to nose Friday inside the Mandalay Bay Events Center, one day away from their much-hyped and long-discussed fight.

Years of anticipation and frustration nearly boiled over as the former UFC and PRIDE champions, respectively, stared at one another after making weight.

Silva (205 lbs.) moved moved towards Liddell (204 lbs.) with his head, prompting UFC president Dana White to jump between two of the most dangerous fighters in mixed martial arts history.

Moving away from Silva, Liddell showed his distaste for the Brazilian by giving him the finger. Silva attempted to make his way across the weigh-in platform, but was stopped by UFC officials and event security.

The evening's main event participants were much more cordial. After each making weight at 170 pounds, former UFC welterweight champions Matt Hughes (Pictures) and Georges St. Pierre (Pictures) shook hands on the eve of their rubber match.

UFC 79 airs live on pay-per-view from Las Vegas, Nevada, Dec. 29 at 7 p.m. PST/10 p.m EST.

Weigh-in results:
Matt Hughes (Pictures) (170) vs. Georges St. Pierre (Pictures) (170)
Wanderlei Silva (Pictures) (205) vs. Chuck Liddell (Pictures) (204)
Soa Palelei (Pictures) (262) vs. Eddie Sanchez (239)
Rameau Thierry Sokoudjou (Pictures) (205) vs. Lyoto Machida (Pictures) (204)
Rich Clementi (Pictures) (155) vs. Melvin Guillard (Pictures) (156)
Luis Arthur Cane (Pictures) (205) vs. James Irvin (Pictures) (205)
Nate Mohr (Pictures) (155) vs. Manvel Gamburyan (Pictures) (155)
Jordan Radev (185) vs. Dean Lister (Pictures) (186)
Roan Carneiro (Pictures) (170) vs. Tony DeSouza (Pictures) (170)
Mark Bocek (Pictures) (155) vs. Doug Evans (Pictures) (154)