Shamrock is co-promoting the event himself through Ken Shamrock Productions and partner Wargods.
Shamrock (26-13-2) will be taking on Ross "Grizzly" Clifton, who at 350-plus pounds, might outweigh Shamrock by over 150 pounds when they step in the cage.
Shamrock is planning on putting together a fight against Abbott for the next KSP-Wargods event in Reno, Nevada.
Shamrock says he would like to promote Shamrock-Abbott on pay-per-view but for now, tonight's event will be streamed live on Sherdog.com at 9:30 p.m. ET.