ST. LOUIS — Marc Bulger did not practice Wednesday, increasing the likelihood the winless St. Louis Rams will go with backup Kyle Boller at quarterback on Sunday in San Francisco.

Coach Steve Spagnuolo has not ruled out Bulger, who has a bruised rotator cuff in his throwing shoulder. Bulger rode a stationary bicycle and did exercises along with safety James Butler and offensive tackle Jason Smith, both recovering from knee injuries.
Boller threw two touchdown passes in the second quarter last week before the Rams’ comeback fizzled in a 36-17 loss to the Packers. Boller had 42 career starts for Baltimore but missed all of last season following a shoulder injury.