Caleb Downs Sidelined in Concussion Protocol After Week 8

Dallas Cowboys rookie safety Caleb Downs did not participate in Wednesday's practice as he remains in the NFL's concussion protocol. Downs sustained the head injury during Sunday's loss to Arizona and must clear all protocol hurdles before returning to football activities. Dallas opens Week 9 preparation for Indianapolis with multiple defensive contributors banged up following back-to-back late-game collapses.