Adam Schefter of NFL Network confirms that Brad Johnson will be the starting quarterback on Sunday for the Cowboys.
But Schefter says that Tony Romo is not expected to play, due to his fractured pinkie.
This likely means that Romo will be the No. 3 quarterback, behind Johnson and Brooks Bollinger.
If nothing else, the uncertainty regarding Romo’s status forced the St. Louis Rams to prepare for both Johnson and Romo.  With only so many reps in practice and only so many hours to break down film, it’s always a benefit to force an opponent to take two possible quarterbacks into account during preparations for the game.