St. Louis Rams

NFL reviewing Keenum concussion procedures

The NFL is investigating whether correct concussion protocol was followed for Rams quarterback Case Keenum late in Sunday's loss at Baltimore.

St. Louis coach Jeff Fisher said Monday the system failed because of a "combination of unusual events" and believed that nobody in particular was to blame.

A league spokesman said a review was begun after the game "to determine the facts of the injury ... and why (Keenum) was not removed from the game for the necessary evaluation by a team physician or the unaffiliated neuro-trauma consultant, as required by our concussion protocols."

That review is continuing through discussions with the Rams and their...