Having a big, strong man like Overeem repeatedly knee you in the groin can cause serious damage, and it apparently did in the case of Cro Cop. And if you don't want to read the details of a man who had serious damage to his groin region, you probably won't want to read the rest of this post.
A Croatian sports web site has the details, and according to MMAConvert.com, this is the translation:
If there's any good news for Mirko, it's this: I bet he barely even notices the knee injury, as long as "his genitals still hurt a lot."
Mirko will have to undergo a testicle exam which got injured in the Overeem fight. Mirko's genitals still hurt a lot says dr. Zeljko Kapulica.
"Mirko's left testicle is still hurting and I have to examine it to determine whether it's stable in the scrotum; complications might occur if the testicle rotates and clogs the blood vessels. Also I need to check if the inguinal canal in which his tescticle was pushed in is open because it could lead to a hernia."
Mirko also feels pain in the right knee which was operated earlier this year.
"I advised him to postpone the Overeem fight till New Year but he insisted on fighting in September. The problem is he couldn't rotate the right knee as much as he wanted which is essential for his LHK and that's why he didn't try to get of the ground because he was afraid of making a wrong move."