Strikeforce kicks off its year with two championship bouts at the BankAtlantic Center in Sunrise, Fla.

Nick Diaz will face DREAM welterweight champion Marius Zaromskis for the vacant Strikeforce welteweight title and Cris Cyborg defends her women's 145-pound belt against Marloes Coenen.

Also on the televised card, NFL great Herschel Walker makes his MMA debut and pro wrestler Bobby Lashley takes on TUF 10 heavyweight Wes Sims.

Showtime Bouts
Nick Diaz vs. Marius Zaromskis for Strikeforce welterweight title
Cris Cyborg vs. Marloes Coenen for Strikeforce women's title
Robbie Lawler vs. Melvin Manhoef
Herschel Walker vs. Greg Nagy
Bobby Lashley vs. Wes Sims

Preliminary Bouts
Jay Hieron vs. Joe Riggs (Airs on EASportsMMA.com)
Pablo Alfonso vs. Marcos Damatta
David Zitnik vs. Michael Byrnes
Sabah Homasi vs. John Kelly
Craig Oxley vs. David Gomez
Ryan Keenan vs. Hayder Hassan