ST. LOUIS -- The St. Louis Rams activated quarterback Tom Brandstater from the practice squad, reflecting concern about Sam Bradford's availability for Sunday's game at San Francisco.
Bradford aggravated a high left-ankle sprain in a loss to Seattle last week, the same injury that sidelined him for two games earlier in the season. He was very limited in practice on Friday.
Brandstater was re-signed to the practice squad earlier this week and could be the backup behind A.J. Feeley. To make room on the roster, linebacker Ben Leber was waived.
The Rams also downgraded safety Darian Stewart, who has a concussion, to doubtful from questionable. Stewart ruled himself out on Friday.