Mark Saxon, OC Register

Peering through the aquarium glass at a tank full of sharks can be more relaxing than frightening. They swim in repetitive circles, silent as night. Now, dump a bucket of fish parts into the tank and the scene quickly turns to menace. Slashing fins, rows of teeth and darting movements shatter the calm. Replace the chum with a tailback and welcome to Keith Rivers’ world. The man who might be the best player on USC’s punishing defense is as approachable as a kindergarten teacher when the Trojans aren’t playing. Yet he’s not the man you want to see angling toward you near the sidelines. That’s why his position coach, Ken Norton Jr., has taken to calling Rivers the Shark… continue