In case you have been under a rock for the past few months, tonight is the big night! Kimbo Slice steps back into the ring to face the legendary Ken Shamrock. Can the youth, power, and speed of Slice defeat the experience and determination of Shamrock? In other bouts Andrei Arlovski will face Roy Nelson, Gina Carano will face Kelly Kobold, Jake Shields will put his title on the line against Paul Daley, and finally Murilo "Ninja" Rua will fight Benji Radach. It's sure to be a great night of action and probably a few surprises. Tune in tonight on CBS.