UFC 55: Fury was a mixed martial arts event held by the Ultimate Fighting Championship on October 7, 2005 at the Mohegan Sun Arena in Uncasville, Connecticut. The event was broadcasted live on pay-per-view in the United States, and later released on DVD. Headlining the card was a title match between UFC Heavyweight Champion Andrei Arlovski and Paul Buentello.

Preliminary Card

Light Heavyweight Bout
Alessio Sakara vs. Ron Faircloth
This bout ended in No Contest at :24 in round two after Sakara was unintentionally kicked in the groin. The bout, although preliminary, was aired on the broadcast.

Heavyweight Bout
Marcio Cruz vs. Keigo Kunihara
Cruz defeats Kunihara by submission (rear naked choke) at 1:02 of round two. This bout was preliminary, and was not aired on the broadcast.

Middleweight Bout
Jorge Rivera vs Dennis Hallman
Rivera defeats Hallman by unanimous decision. The bout, although preliminary, was aired on the broadcast.

Main Card

Welterweight Bout
Joe Riggs vs. Chris Lytle
Joe Riggs, making his debut at welterweight (170 lb), defeats Chris Lytle by technical knockout (doctor stoppage) at 2:00 of round two.

Light Heavyweight Bout
Renato Sobral vs Chael Sonnen
Sobral defeats Sonnen by submission (triangle choke) at 1:20 of round two.

Light Heavyweight Bout
Forrest Griffin vs. Elvis Sinosic
Griffin defeats Sinosic by technical knockout (strikes) at 3:22 of round one. Sinosic, the Australian, was a replacement for Griffin's original opponent, Ian Freeman, who suffered an injury before the fight and had to withdraw from the fight card.

Heavyweight Bout
Branden Lee Hinkle vs. Sean Gannon
In the evening's swing bout, Hinkle defeats Gannon by technical knockout (strikes) at 4:14 of round one.

UFC Heavyweight Championship
Andrei Arlovski (Interim Champion) vs. Paul Buentello
In the main event of the evening, interim heavyweight champion Andrei Arlovski successfully defends his title and defeats Paul Buentello by knockout at :15 of round one. The UFC decided this match would be for the official UFC Heavyweight title as former UFC Heavyweight champion Frank Mir, who injured himself during a motorcycle accident, was in no shape to return to the UFC ring anytime soon.