Marquardt, a former fighter in the UFC, will face Tarec Saffiedine in his first - and last - defense. Marquardt won the belt over Tarec Saffiedine.
Strikeforce will be closing up shop following the show, and several fighters are expected to sign with the UFC. The promotion was planning three title fights for the event, but two champions - Gilbert Melendez and Luke Rockhold - were unable to train properly following injuries.
The updated card can be found below. Two of the prelims will not be televised, while four other air on Showtime Extreme at 7 p.m. ET. The main card airs on Showtime at 10 p.m. ET.
MAIN CARD (Showtime)
Strikeforce Welterweight Championship
Nate Marquardt (c) vs. Tarec Saffiedine
Heavyweight: Daniel Cormier vs. Dion Staring
Heavyweight: Josh Barnett vs. Nandor Guelmino
Light Heavyweight: Gegard Mousasi vs. Mike Kyle
Catch-weight: Ronaldo Souza vs. Ed Herman
PRELIMINARY CARD (Showtime Extreme)
Lightweight: Pat Healy vs. Kurt Holobaugh
Middleweight: Roger Gracie vs. Anthony Smith
Middleweight: Tim Kennedy vs. Trevor Smith
Lightweight: Ryan Couture vs. K.J. Noons
PRELIMINARY CARD (Unaired)
Lightweight: Jorge Gurgel vs. Adriano Martins
Lightweight: Estevan Payan vs. Michael Bravo
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