This Saturday at the “Shark Tank” HP Pavillion in San Jose, California, Strikeforce presents two title fights with its Diaz vs. Cyborg card. The main event will feature current Strikeforce Welterweight Champion “Diablo” Nick Diaz (22-8) taking on “Cyborg” Evangelista Santos (17-13) for the 170lbs. title along with the co-main event showcasing the classic striker vs. grappler match-up with Jiu-Jitsu ace “Jacare” Ronaldo Souza (12-2) defending his middleweight belt against slugger “Ruthless” Robbie Lawler (18-6). The crowd will also be treated to Roger Gracie’s (3-0) return to the Strikeforce cage, fighting Lion’s Den graduate Trevor Prangley (22-6-1), as well as the highly anticipated return of 48-year-old former NFL star and current American Kickboxing Academy fighter Herschel Walker (1-0) taking on Scott Carson (4-1) in just his second appearance not only in the Strikeforce promotion, but in the cage. Let’s take a closer look at this fight.