Strikeforce: Rousey vs. Kaufman, which is headlined by the Strikeforce women’s bantamweight championship bout between Ronda Rousey and Sarah Kaufman, and the middleweight bout between Ronaldo “Jacare” Souza and Derek Brunson, airs on Showtime from the Valley View Casino Center in San Diego, California.

Strikeforce: Melendez vs. Masvidal is an upcoming mixed martial arts event to be held by Strikeforce. The event will take place on December 17, 2011 at the Valley View Casino Center in San Diego, California.

Invicta FC 4: Esparza vs. Hyatt was a mixed martial arts event held on January 5, 2013 at the Memorial Hall in Kansas City, Kansas. The event will be headlined by a strawweight championship bout between Carla Esparza and Bec Hyatt. Esparza was originally scheduled to fight Ayaka Hamasaki for the title but Hamasaki pulled out of the fight due to commitments to defending her JEWELS lightweight title in December and was replaced by undefeated Brazilian fighter Claudia Gadelha. On December 28, Gadelha was forced to withdraw from the main event title fight after suffering a broken nose in training. Gadelha was replaced by Bec Hyatt, who was originally set to face Joanne Calderwood.