Satoshi Ishii Off Strikeforce Challengers 15; Hiroyuki Takaya Added to ?Diaz vs. Daley?

Satoshi Ishii will have to wait to make his Strikeforce debut, after the 2008 Olympic Judo gold medalist was unable to acquire a visa to leave his native Japan in time to face Scott Lighty at Friday's Strikeforce Challengers 15.Meanwhile, DREAM featherweight champ Hiroyuki Takaya will make his Strikeforce debut on the preliminary card of "Strikeforce: Diaz vs. Daley" on April 9.

Aldrin de Jesus  Todd Duffee  Marvin Eastman  Stav Crazy Bear Economou  Yves Edwards  Justin Eilers