There are some thing in sports you just can't do. One of the things high on that list is to stomp on an opponent's crotch. USC linebacker Jabari Ruffin did just that late in the second quarter, clearly stomping on the groin of Alabama's Minkah Fitzpatrick.
USC was assessed an unsportsmanlike conduct penalty and Ruffin was immediately ejected. The incident happened right in front of the referee so justice was swift.