Case Keenum (concussion) was a limited participant in Wednesday's practice, Nick Wagoner of ESPN.com reports.

Keenum (concussion) was a limited participant in Wednesday's practice, Nick Wagoner of ESPN.com reports.

Analysis:

Keenum's ability to take part in some individual drills indicates that he's progressing through the concussion protocol. An independent neurologist will ultimately be called upon to clear the quarterback for a return to the field, but the uncertain nature of concussions clouds whether he'll be able to do so this Sunday at Cincinnati. If he's deemed unready to suit up, Nick Foles will serve as the Rams' starting quarterback.