Light, 35, a two-time All-American wrestler in high school and junior college, lost his last three bouts in 2008.
Light recently coached and cornered UFC heavyweight contender Cheick Kongo, middleweight Mike Bisping, and former UFC light heavyweight champion Quinton "Rampage" Jackson.
Strikeforce Challengers will broadcast live at 11 p.m. ET/PT (delayed on the west coast).
Strikeforce Challengers
Sept. 25
SpiritBank Event Center
Tulsa, Okla.
Tim Kennedy vs. Zak Cummings
Ray Sefo vs. Kevin Jordan
Tyron Woodley vs. Zach Light
Travis Calanoc vs. Thomas Longacre