Bradford sat out of practice for a third consecutive day Friday because of a high left ankle sprain and was listed as questionable by the Rams. Coach Steve Spagnuolo said Bradford, who has been wearing a protective boot all week, tried to do some work with a team trainer Friday morning.
"Obviously, he didn't come out here and practice, so we didn't think he was healthy enough to do that," Spagnuolo said. "We'll take it one day at a time and we'll see where we're at on Sunday."
It was all expected for Bradford, who NFL Network insider Jason La Canfora reported Thursday would be a game-time decision.
A.J. Feeley is expected to start if Bradford is unable to play.
The Associated Press contributed to this report