He did knee him in the balls, but 2 things:
1. I respect Ken for being a pioneer, but lately he is making excuses that make him sound so inexperienced. Recently he said he loosened his choke because Kimbo tapped. A guy as experienced as Ken should know not to stop until the ref stops you. Now against Royce he complains there was a groin strike. But you can't just grab your groin and hope the ref stops and gives you a break. You have to keep defending. Someone as experienced as Ken should know it.
2. I agree with Royce. You guys come from the time of NHB. You wanted to avenge your NHB loss. Well, in that day there was hair pulling, groin strikes, bareknuckle etc. this was tame by comparison.