QB Zach Mettenberger landed a few punches on a DT after a late hit in a recent scrimmage. "At times when we go against each other, there's a natural competitive rivalry there," said coach Les Miles, who acknowledged the confrontation. "I like his attitude. He just needs to keep his cool head. But I like him a lot."

CBS Sports: Practice gets feisty with QB Mettenberger throwing punches Your starting quarterback throws punches at a 300+ pound guy decked out in helmets and shoulder pads. What could ever go wrong? Meanwhile, Jordan Jefferson nods in approval.