Cristiane “Cyborg” Santos will not be able to defend her 145-pound women’s title on Nov. 7 at the Sears Centre Arena in Hoffmann Estates, Ill., Sherdog.com has confirmed with the promotion.

Santos, who was named as a strong possibility for the CBS-televised event, injured her shoulder while competing at the 2009 Abu Dhabi World Submission Grappling Championships on Sept. 27 in Barcelona, Spain. The 24-year-old Brazilian placed third in her division during the world-caliber event.

Santos was examined by her physician on Wednesday and will undergo a brief rehabilitation. The injury will not require surgery.

Santos was tentatively slated to face either Marloes Coenen or Erin Toughill in her first title defense. Santos won the newly minted title against Gina Carano, coaxing out a first-round stoppage from strikes at 4:59 of their championship bout at Strikeforce “Carano vs. Cyborg” on Aug. 15 in San Jose, Calif.

The promotion has yet to announce its two remaining main card bouts, which will televise live on CBS. One will feature Strikeforce light heavyweight champion Gegard Mousasi against a yet-to-be-named opponent.