St. Louis, MO -- (Sports Network) - St. Louis Rams quarterback Marc Bulger was put on injured reserve Saturday with a fractured left shin bone.

Bulger becomes the 13th Rams player to go on IR this season. He hasn't played since November 22 and finishes the season with 1,469 yards passing with five touchdowns and six interceptions.

Keith Null started under center last weekend in a 16-13 loss to Houston. Null, who has started the last two games, or Kyle Boller will start Sunday at Arizona for the 1-13 Rams.