EAST LANSING -- Injuries are a part of training camp, but that doesn't mean Michigan State defensive coordinator Pat Narduzzi has to like them. "I'm least happy when guys are sitting in yellow jerseys," Narduzzi said. "We preach toughness, and you wish a guy would push through it. I wish we didn't have any yellow jerseys out there. "If someone gave me yellow, I'd take it off and say I'm good enough to go." Details of the injury bug biting the Spartans emerged Wednesday.