Packers' linebacker Nick Barnett will miss the remainder of the season with a knee injury. Green Bay coach Mike McCarthy said Monday that Barnett tore a right knee ligament in Sunday's game against Minnesota. "We've lost Nick Barnett for the season because of a ligament tear in his knee," McCarthy said. "So, we just got the word here about a half-hour ago. He's very disappointed. It's unfortunate, but we need the other guys to step up."