IRVING, Texas -- The Dallas Cowboys suffered a major blow to their defense Friday when starting middle linebacker Sean Lee was ruled out for Sunday's game against the Green Bay Packers with continued neck issues.

Cowboys coaches informed the players of Lee's health status during team meetings Friday. He is considered week to week with, for him, only two regular-season games left.

"I was surprised," defensive end DeMarcus Ware said after Friday's practice. "I saw him in the meeting and asked 'Hey, what's wrong? Are you all right?' He was just a little bit upset. Things happen, and you just got to keep rolling and find a way to win this game."