Despite early indications of a second Southern showing, Adrenaline MMA will be a local affair for promoter and manager Monte Cox when the fourth installment of the regional promotion hits the Mid-American Center on Sept. 18 in Council Bluffs, Iowa.

Former UFC heavyweight champion Tim Sylvia will headline his second consecutive Adrenaline card, hoping to shake off a devastating loss to ex-boxing champ Ray Mercer at Adrenaline III in Birmingham, Ala. He faces former Canadian Football League standout Jason Riley.

UFC vets dot the rest of the card, with a light heavyweight match-up between Houston Alexander and Sherman Pendergarst co-headlining the evening, in addition to appearances by Chad Reiner, Forrest Petz, and Joe Vedepo.

Main Events: -Tim Sylvia (24-5) vs. Jason Riley (6-1) -Houston Alexander (8-4) vs. Sherman Pendergarst (11-13)

Main Card: -Chad Reiner (19-8) vs. Forrest Petz (13-7) -Alonzo Martinez (23-10) vs. Ryan Williams (10-4) -Jeremy Lang (15-1) vs. Matt Delanoit (13-6) -Joe Vedepo (9-2) vs. Webster Farris (1-0) -Jimmy Siepel (1-0) vs. Bob Tuttle (1-0)

Preliminaries: -Todd Meneely (0-0) vs. Corey McDonald (1-1) -Dustin Smith (5-0) vs. Marcos Marquez (3-0) -Matt Bentley (4-2) vs. Danny Black (7-5) -John Hansen (10-2) vs. Gregg Van der Creek (4-1) -Dakota Cochrane (6-0) vs. Bill Holcombe (12-4) -Ryan Shell (15-4) vs. Robert Rojas (13-1)

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