FiveOuncesOfPain.com confirmed the news with Rosa via e-mail over the weekend.

Rosa began his career with a 10-0 record before suffering the first loss of his career after being submitted in the second round by Jared Hamman during as ShoXC event in October of 2007. Facing Jaime Fletcher on short notice during another ShoXC event this past March, Rosa dropped his second his second consecutive fight when he was declared the loser via unanimous decision.

He returned to his winning ways during Adrenaline MMA’s first-ever show this past June, where he TKO’d Ron Fields at 0:34 of round 2.

Petruzelli is 9-4 and is a veteran of two UFC fights, both defeats. In his UFC debut he lost a unanimous decision to Matt Hamill in October of 2006 during the live Spike TV special that featured Tito Ortiz vs. Ken Shamrock. He would return to the Octagon in April of 2007 at UFC Fight Night 9, where he was submitted by Wilson Gouveia at 0:39 of round 2.

EliteXC’s Oct. 4 event will be broadcast on CBS and will feature Kevin “Kimbo Slice” Ferguson vs. Ken Shamrock, Jake Shields defending his EliteXC welterweight title vs. Paul Daley, Gina Carano vs. Kelly Kobold-Gavin, and Murilo “Ninja” Rua vs. Benji Radach.

Joining Rosa vs. Petruzelli during the non-televised undercard will be bouts between Mike Aina vs. Edson Berto and Cris Cyborg vs. Yoko Takahashi.