Matchmakers for the Ultimate Fighting Championship have announced more fights for UFC 86: Jackson vs. Griffin, scheduled for Saturday, July 5 in Las Vegas, Nev.

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In the main event, UFC light heavyweight champion Quinton "Rampage" Jackson (27-6) will defend his belt against challenger Forrest Griffin (15-4). The two fighters are currently appearing as coaches on the seventh season of The Ultimate Fighter.

Jackson is currently the -260 favorite to win in the Bodog Sportsbook while Griffin is the +200 underdog.

The undercard features the return of lightweight Joe Stevenson (33-8) following his loss to B.J. Penn (13-4-1) at UFC 80: Rapid Fire in January, where Penn defeated Stevenson by choke to win the lightweight belt.

Stevenson will face Brazilian Gleison Tibau (27-4), whose last UFC bout was a controversial decision loss to Tyson Griffin (11-1) at UFC 81: Breaking Point in February,

After tapping out Brock Lesnar (1-1) in his last match, former UFC heavyweight champion Frank Mir (11-3) will enter the octagon to take on Justin McCully (8-3-2). McCully has been out of action with an elbow injury since winning his UFC debut a year ago.

Other fighters on the card include The Ultimate Fighter stars Melvin Guillard (39-8-3), Josh Koscheck (12-2) and Jared Rollins (9-4).

Official Fights for UFC 86: Jackson vs. Griffin
Saturday, July 5, Las Vegas, Nev.

* Quinton Jackson vs. Forrest Griffin
* Joe Stevenson vs. Gleison Tibau
* Frank Mir vs. Justin McCully
* Melvin Guillard vs. Dennis Siver
* Josh Koscheck vs. Chris Lytle
* Tyson Griffin vs. Marcus Aurelio
* Justin Buchholz vs. Corey Hill
* Ben Saunders vs. Jared Rollins
* Cole Miller vs. TBA
* Steve Bruno vs. TBA

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