It wasn't a crackback block it was a dive at AC's knees. They were going after his lower legs the whole time.
At least he got mad about it, and went after the scumsucker. I think it was the left guard who did it, not Carimi.
I hate Wisconsin, always have hated Wisconsin, never cheer for Wisconsin and never will after that crap.
I was about 5 rows up down there in the North End Zone... I was so mad I wanted to charge the field. That was about as dirty as it can get.