STRIKEFORCE CEO Scott Coker is the an in the middle of the fighters who will appear on Saturday's STRIKEFORCE World Championship Doubleheader fight card on SHOWTIME at HP Pavilion in San Jose, Calif. Left-to-right: Roger Gracie, Herschel Walker, Jacare Souza, Nick Diaz, Coker, Evangelista Cyborg, Robbie Lawler, Scott Carson and Trevor Prangley.