Knees to the groin aside, Alistair Overeem isnt buying Mirko Cro Cop Filipovics claims that he could not continue during last nights Dream.6 bout. Cro Cops anguish looked pretty genuine, and Overeems knees seemed intent on finding his testicles, but Fighters Only reports that the Dutchman thinks dude was faking it in order to get out of a beating: Source: Alistair Overeem Calls Cro Cop a Faker?
From what I read, Cro Cop was losing badly before the knees. However, the knees seemed to be really painful.