Tony Romo is done for the season after the Cowboys opted to place him on the injured reserve Tuesday. He has been out since breaking his left collarbone Oct. 25. "When you just start doing the math on it and say, 'Where is he with this injury? Where is he physically functioning? Where is he being able to take a hit? And then, how much practice time you need to have any player be ready to play in a game?' " Cowboys interim coach Jason Garrett said. "We just felt when we factored all those things together, it just made sense to make this move."