There was a reason Dada 5000 was knocked out by Kimbo Slice so easily.  He suffered from renal failure and dehydration and was hospitalized after the fight.

In the hospital his heart stopped and he had to be resuscitated by a doctor.  He is said to be resting comfortably following the fight and his family released a statement about his condition.

Here is a video of Dada being removed on a stretcher.