Thanks to Rex on the tip off on this.
Apparently Slice will make his sanctioned MMA debut against former world champion boxer Ray Mercer at Cage Fury Fighting Championship 5, to be held in Atlantic City, New Jersey on June 23, 2007.
A video of Slice signing for the fight can be seen on the Cage Fury official website.
Slice talks about his upcoming debut in an interview with touchgloves.com. The match is a three-round exhibition utilizing all professional rules of mixed martial arts combat.
Slice will be featured on The Iron Ring, a new television series airing on BET which features mixed martial arts prospects. Slice will be a part of the selection process for the participants.
If you're not familiar with Kimbo (he will kill you for not knowing him) you can check out his previous fights
here and
here.