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UFC 84: Ill Will
Preliminary card
- Heavyweight bout:
Christian Wellisch vs. 
Shane Carwin
- Carwin defeated Wellisch via KO (punch) at 0:44 of Round 1. This bout aired on the PPV broadcast following the Gouveia vs. Reljic fight.
- Welterweight bout:
Jason Tan vs. 
Kim Dong-hyun
- Kim defeated Tan via TKO (elbows) at 0:25 of round 3.
- Welterweight bout: Jon Koppenhaver vs.
Yoshiyuki Yoshida
- Yoshida defeated Koppenhaver via submission (anaconda choke) at 0:56 of round 1. This bout aired on the PPV broadcast following the Penn vs. Sherk fight.
- Lightweight bout: Rich Clementi vs. Terry Etim
- Clementi defeated Etim by unanimous decision (29–28, 29-28, 29-28).
- Light Heavyweight bout:
Rameau Thierry Sokoudjou vs. Kazuhiro Nakamura
- Sokoudjou defeated Nakamura by TKO (leg injury) at 5:00 of round 1. This bout aired last on the PPV broadcast following the Koppenhaver vs. Yoshida fight.
- Middleweight bout:
Ivan Salaverry vs. 
Rousimar Palhares
- Palhares defeated Salaverry via submission (armbar) at 2:36 of round 1. This bout aired on the PPV broadcast following the Silva vs. Jardine fight.
Main card
- Light Heavyweight bout: Thiago Silva vs. Antonio Mendes
- Silva defeated Mendes via submission (punches) at 2:24 of round 1.
- Light Heavyweight bout: Lyoto Machida vs. Tito Ortiz
- Machida defeated Ortiz via unanimous decision (30-27, 30-27, 30-27).
- Light Heavyweight bout: Wilson Gouveia vs.
Goran Reljic
- Reljic defeated Gouveia via TKO (punches) at 3:15 of Round 2.
- Light Heavyweight bout: Wanderlei Silva vs. Keith Jardine
- Silva defeated Jardine via KO (punches) at 0:36 of Round 1.
- Lightweight Championship bout: B.J. Penn (c) vs. Sean Sherk
- Penn defeated Sherk via TKO (strikes) at 5:00 of round 3 to retain the UFC Lightweight Championship.
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